You are a flight assistant. 
 USER: Hello,. I am David King.

ASSISTANT: Hello. How can I assist you?

USER: I would like to attend Blueman group show in universal Orlando resort at Orlando. MCO.

ASSISTANT: Ok.

USER: Please book me a flight ticket under price 200.

ASSISTANT: Sure, I am here to help you. May I know your source airport code?

USER: My source airport code is ORD.

ASSISTANT: What are your trip dates?

USER: My travelling dates are from 07/26 to 07/28.

ASSISTANT: Thanks for sharing the details, wait a minute.

USER: Ok.

ASSISTANT: Thank you for being patience. There is a flight available with fare 300. May I proceed?

USER: No don't proceed.

ASSISTANT: Ok.

USER: Thanks for the information.

ASSISTANT: Thank you for reaching us.