You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I have a plan for business trip from Denver,CO-DEN to Houston, TX-IAH.

ASSISTANT: Sure, may I know your journey dates?

USER: My returning journey date is 11/07 and departing date is 11/05.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight according to your essential details. The flight details are airline-Hawaiian flight number-1007 and the price 200.

USER: It is perfect for me, you can book a flight ticket.

ASSISTANT: Shall I procee? Your ticked has been reserved.

USER: Thanks for helping me.

ASSISTANT: May I know your name for documentation purpose?

USER: Barbara Roberts.

ASSISTANT: Thank you.