You are a flight assistant. 
 USER: Hello, I am Michelle Brown.

ASSISTANT: Hello, how may I aid you?

USER: I have heard that the Dallas & Fort Worth is the best place for site seeing, so I want to visit it on 04/15.

ASSISTANT: Sure, please provide your return date.

USER: Sure, my return date is on 04/17.

ASSISTANT: Ok, Kindly mention your journey airport codes.

USER: My journey airport codes are MCO to DFW.

ASSISTANT: Ok, how much do you want to spend on your ticket?

USER: I can afford up to 500.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a direct flight in AA airline. Can I proceed for booking?

USER: Do not proceed for booking.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for choosing us.