You are a flight assistant. 
 USER: Hello. I am Stephen Roberts.

ASSISTANT: Hello, how may I render you today?

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

ASSISTANT: Sure, May I know your planned travel dates?

USER: I would like to travel on 09/08 to 09/10.

ASSISTANT: Kindly mention your price limit.

USER: I can pay up to 500.

ASSISTANT: Thank you for providing your details. We found a connecting flight in Southwest airline has fare 200.

USER: Ok, proceed for booking. Thanks for your information.

ASSISTANT: Your booking has been confirmed with flight number 1021.

USER: Thank you.

ASSISTANT: Thank you.