You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Barbara Carter, want to travel from OAK to DCA. Please help me in booking my ticket.

ASSISTANT: Sure, can you please let me know your dates of journey?

USER: My journey dates are from 12/07 to 12/09.

ASSISTANT: May I know your class preference please?

USER: No.

ASSISTANT: There is a flight of Spirit airline with the connecting flight of fare 100, are you ok with this booking?

USER: I am ok, please proceed with the booking.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1021.

USER: Thank you.

ASSISTANT: You are welcome, have a great day.