You are a flight assistant. 
 USER: Hello, I am Debra Campbell.

ASSISTANT: Hello, how may I help you?

USER: I want to visit New York city, please book a flight ticket under price 500.

ASSISTANT: Sure, may I know your preferable dates?

USER: My travelling dates are from 12/11 to 12/13.

ASSISTANT: Ok, let me know your source and destination airport codes?

USER: I want to fly from MCO to EWR.

ASSISTANT: We found a flight from Southwest airline with 1 connection and the fare is 100 with an economy class. Shall I proceed?

USER: Please go ahead.

ASSISTANT: Your ticket is booked with 1011 flight number.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.