You are a flight assistant. 
 USER: Hello, I am Frank Martinez.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Please share your nearby airport codes.

USER: My airport codes are DEN and SEA.

ASSISTANT: Can I have your journey dates?

USER: I would like to go on 02/08 and return back on 02/10.

ASSISTANT: Please wait for a moment.

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

ASSISTANT: There is a flight available with UA airlines, shall I book it?

USER: Ok, please proceed.

ASSISTANT: Your booking is done with flight number 1003.

USER: Thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.