You are a flight assistant. 
 USER: Hello, I am Justin Thompson.

ASSISTANT: Hello, how may I help you at this moment?

USER: I would like to go to a beach in Denver, so could you please book a ticket for me?

ASSISTANT: Sure, I will help you. Can you share your travelling dates?

USER: Sure, I would like to go on 04/04 and return back on 04/06.

ASSISTANT: Can you please share your nearby airport codes?

USER: My source and destination airport codes are DEN and DEN.

ASSISTANT: Please wait for a while.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connecting flight available with Delta airline, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1027.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Welcome.