You are a flight assistant. 
 USER: Hello, I am Nicole Allen.

ASSISTANT: Hello, how can I serve you?

USER: I want to go to Orlando, FL - MCO. Can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your source airport code?

USER: I want to fly from Dallas & Fort Worth, TX - DFW.

ASSISTANT: Ok, please share me your planned dates.

USER: My trip dates are from 07/30 to 08/01.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Nicole Allen, sorry to say you that there is no flight available on your requested dates.

USER: It's ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.