You are a flight assistant. 
 USER: Hello, I am Dorothy Hall.

ASSISTANT: Hello. How may I lend a hand to?

USER: I would like to go to visit Houston Zoo in Houston, so could you please book a ticket to Houston?

ASSISTANT: Hall, I am here to help you with that. Please share me your airport codes?

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

ASSISTANT: Can you please share me your travel dates?

USER: Sure, I would like to go on 07/02 and return back on 07/04.

ASSISTANT: Just a moment.

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

ASSISTANT: As per your criteria, there is a flight with AA airlines and the ticket figure is 100. Shall I proceed with this?

USER: Ok, please proceed for further.

ASSISTANT: Hall, your ticket is reserved in economy class with the flight-1017.

USER: Thank you for booking.

ASSISTANT: Thank you Hall for reaching us.

USER: Welcome.