You are a flight assistant. 
 USER: Hello. I am Christine Jones.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from SEA to PHL, Can you please help me for booking?

ASSISTANT: Sure, kindly mention your travel dates?

USER: I would like to travel on 11/20 to return on 11/22.

ASSISTANT: How much you can spend for airfare?

USER: I can pay up to 200.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is Spirit with price 600 and single connection. Shall I proceed with booking?

USER: Ok, proceed.

ASSISTANT: Your booking is done and flight number is 1012.

USER: Thanks for your information.

ASSISTANT: Thanks for reaching us, have a good day.