Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| No. in series | No. in season | Title | Directed by | Written by | Original air date | Production code |
| --- | --- | --- | --- | --- | --- | --- |
| 182.0 | 1.0 | "Cherished" | Ed Sherin | Kathy McCormick, Carl Nelson, Scott Tobin | September 23, 1998 | E0203 |
| 183.0 | 2.0 | "DWB" | Constantine Makris | René Balcer , Kathy McCormick | October 7, 1998 | E0205 |
| 184.0 | 3.0 | "Bait" | Lewis H. Gould | I. C. Rapoport , David Shore | October 14, 1998 | E0204 |
| 185.0 | 4.0 | "Flight" | David Platt | Richard Sweren, William N. Fordes | October 21, 1998 | E0209 |
| 186.0 | 5.0 | "Agony" | Constantine Makris | Kathy McCormick | November 4, 1998 | E0216 |
| 187.0 | 6.0 | "Scrambled" | Martha Mitchell | Dick Teresi , Ed Zuckerman, Judith Hopper | November 11, 1998 | E0208 |
| 188.0 | 7.0 | "Venom" | Jace Alexander | I. C. Rapoport, David Shore | November 18, 1998 | E0206 |
| 189.0 | 8.0 | "Punk" | Matthew Penn | Matt Witten , Richard Sweren | November 25, 1998 | E0215 |
| 190.0 | 9.0 | " True North " | Arthur W. Forney | Ed Zuckerman | December 9, 1998 | E0207 |
| 191.0 | 10.0 | "Hate" | Constantine Makris | René Balcer | January 6, 1999 | E0214 |
| 192.0 | 11.0 | "Ramparts" | Matthew Penn | Kathy McCormick, Lynne E. Litt | January 13, 1999 | E0211 |
| 193.0 | 12.0 | "Haven" | David Platt | David Shore, I. C. Rapoport | February 10, 1999 | E0219 |
| 194.0 | 13.0 | "Hunters" | Richard Dobbs | Gerry Conway , William N. Fordes | February 10, 1999 | E0218 |
| 195.0 | 14.0 | " Sideshow " | Ed Sherin | René Balcer | February 17, 1999 | E0210 |
| 196.0 | 15.0 | "Disciple" | Martha Mitchell | Kathy McCormick, Lynne E. Litt, Richard Sweren | February 24, 1999 | E0220 |
| 197.0 | 16.0 | "Harm" | Richard Dobbs | Eddie Feldmann, René Balcer | March 3, 1999 | E0213 |
| 198.0 | 17.0 | "Shield" | Stephen Wertimer | David Shore, I. C. Rapoport, René Balcer | March 24, 1999 | E0220 |
| 199.0 | 18.0 | "Juvenile" | Lewis H. Gould | Richard Sweren, Lynne E. Litt | April 14, 1999 | E0223 |
| 200.0 | 19.0 | "Tabula Rasa" | Richard Dobbs | William N. Fordes, Kathy McCormick | April 21, 1999 | E0222 |
| 201.0 | 20.0 | " Empire " | Matthew Penn | René Balcer | May 5, 1999 | E0217 |
| 202.0 | 21.0 | "Ambitious" | Christopher Misiano | Barry M. Schkolnick, Richard Sweren | May 12, 1999 | E0221 |
| 203.0 | 22.0 | "Admissions" | Jace Alexander | William N. Fordes, Lynne E. Litt, Kathy McCormick | May 19, 1999 | E0224 |
| 204.0 | 23.0 | "Refuge (Part 1)" | Constantine Makris | René Balcer | May 26, 1999 | E0212 |
Question:
What is the title of the episode with the original air date October 21, 1998?
Answer:
"Flight"