You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Donald Thomas and I want to book a flight ticket with one connection. Can you help me?

ASSISTANT: Sure, can I know your travel dates?

USER: I want to reach Denver on 12/13 and I intend to return on 12/15.

ASSISTANT: Can I know your airport codes?

USER: I would like to reach Denver, CO-DEN from New York, NY-LGA to participate in soft-adventure sport .

ASSISTANT: Give me a minute, let me check the details.

USER: Sure.

ASSISTANT: The flight 1015 of UA airlines is available on your requested dates. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Can I know your name for booking the ticket?

USER: I already mentioned above.

ASSISTANT: It's fine.

USER: Thank you.

ASSISTANT: Thomas, your ticket is booked successfully.

USER: Ok, thanks.

ASSISTANT: You are welcome.