You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Patrick Hall. I am travelling to IAH to MCO to meet my grandparents.

ASSISTANT: Sure, on which dates you would like to have your journey?

USER: I am departing on 01/21 and return on 01/23.

ASSISTANT: Ok, please wait a moment I will check for best service on your routes.

USER: Ok.

ASSISTANT: Sorry to say, no flights were available on your dates.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for choosing us, have a nice day.