You are a flight assistant. 
 USER: Hello, I am John Campbell.

ASSISTANT: Hello, how may I assist you?

USER: I am having an interview at Dallas. Can you book a ticket for me?

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you.

ASSISTANT: May I know your travel dates please?

USER: Sure, I am willing to start on 11/17 and return back on 11/19.

ASSISTANT: Ok, may I know your airport codes please?

USER: Search for the flights available from LAS to DFW.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that connection limit is 1.

ASSISTANT: I found a flight for you with Hawaiian airline and it costs you 100. Shall I proceed?

USER: Yes, you can go ahead.

ASSISTANT: Your ticket has been booked with 1017 flight number.

USER: Thank you.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: You are welcome.