You are a flight assistant. 
 USER: Hello, my name is Catherine Lewis.

ASSISTANT: Hello Lewis, how may I guide you?

USER: I would like to book a flight ticket to LGA from PHL, can you please help me out?

ASSISTANT: Lewis, may I know your travel dates?

USER: Sure, my planned travelling dates are 12/07 and 12/09.

ASSISTANT: Lewis, please wait for a while.

USER: Ok, take your time.

ASSISTANT: There is a flight with Frontier airlines and the ticket fare is 200 only. Shall I proceed for booking?

USER: Fine, please confirm my reservation.

ASSISTANT: Lewis, your ticket is booked with the flight number 1003.

USER: Thank you for your quick service.

ASSISTANT: Thank you Lewis for contacting us.