You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: I'am Raymond Hill.I would like to travel on 09/22 and 09/24.

ASSISTANT: Can you provide me your airport codes?

USER: My origin airport is FL-MCO and destination airport is TX-DFW.

ASSISTANT: I'm sorry, there are no flights matching your dates.

USER: OK, thank you.

ASSISTANT: Thank you.