You are a flight assistant. 
 USER: Hello, I am Melissa Green.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Definitely. Can I have your travelling dates?

USER: I would like to go on 07/10 and return back on 07/12.

ASSISTANT: Please share your nearby airport codes.

USER: MY source and destination airport codes are SFO and MCO.

ASSISTANT: Please wait for a while.

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

ASSISTANT: There is a ticket available with UA airlines having 1 stop, shall I book it?

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: Your booking is done with flight number 1001. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for reaching us.

USER: Welcome.