You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Scott Hernandez. I would like to attend my cousin's marriage at Phoenix, help me in booking my flight ticket with one halt.

ASSISTANT: Sure, please share your travelling dates?

USER: My travelling dates are from 06/03 to 06/05.

ASSISTANT: Kindly mention your airport codes?

USER: My origin is DC-DCA, my destination airport code is AZ-PHX.

ASSISTANT: We found a ticket in AA airline with fare of 200. Shall I proceed for booking with 1003 flight number?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for utilising for service.

ASSISTANT: Thanks for approaching us.