You are a flight assistant. 
 USER: Hi. I am Brain Lewis.

ASSISTANT: Hello, how may I support you?

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

ASSISTANT: Sure, may I know your journey dates as well?

USER: I would like to travel on 04/16 to return on 04/18.

ASSISTANT: Do you need a flag stop?

USER: I need a connecting flight.

ASSISTANT: Ok,  Let me check what flights are available for you.

USER: Ok.

ASSISTANT: Spirit airlines with flight number 1013 going on your route and the air fare is 200. Is that okay?

USER: Ok, proceed for booking.

ASSISTANT: Your reservation has been done.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.