You are a flight assistant. 
 USER: Hello, I am Charles Robinson.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book a flight ticket to Seattle to attend my cousin's marriage. Could you help me in booking from 04/04 to 04/06.

ASSISTANT: Sure, kindly mention your airport codes?

USER: Sure, my journey is from PHX to SEA.

ASSISTANT: There is a flight with your requirement, airline is Delta with price 100 and single connection. Can I proceed with booking?

USER: Ok, go on with my booking.

ASSISTANT: Your booking is done.

USER: Thanks for your service.

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