You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am planning to book a flight ticket to IAD from SFO, can you please help me out?

ASSISTANT: Sure, can you please share your travel dates?

USER: Sure, my planned travelling dates are Sept 20 and Sept 22.

ASSISTANT: Do you have any connection limit?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: May I know your class preference?

USER: I prefer economy class.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Patricia Thomas.

ASSISTANT: Ok, please be on hold.

USER: Ok, take your time.

ASSISTANT: Delta airlines is having a flight with a ticket fare of 100 in economy class, which departs at 19:00 PM and arrives at 20:00 PM, shall I proceed with booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed with the flight-1017.

USER: Thank you for the help.

ASSISTANT: Welcome, have a safe trip.