You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Jason Collins. I would like to visit Washington Monument with my wife on our marriage anniversary. Can you help me?

ASSISTANT: Ok. May I know your airport codes & dates please?

USER: My origin airport code is LAS and destination airport code is IAD. My travelling dates are 11/17 and 11/19.

ASSISTANT: Frontier airline is matching you with 1009 flight number,can I proceed for booking?

USER: Please proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you have a safe journey.