You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I'm Donald King, planning to have a round trip in Houston. Can you please book me a ticket from IAH to HOU?

ASSISTANT: Sure, I will help with that. May I know your travel dates please?

USER: My preferable journey dates are from 11/28 to 11/30.

ASSISTANT: There is a flight with 1 connection limit and the airlines is Hawaiian. Can I book it?

USER: Please book my ticket with this flight.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for your trust in our agency. Have a safe and happy journey.