You are a flight assistant. 
 USER: Hello, Andrew Wilson here.

ASSISTANT: Hello Wilson, how can I assist you?

USER: I am looking for a flight ticket on the route from IAD to MCO, can you please search for it?

ASSISTANT: Sure, I can search for that, what are your planning dates?

USER: My planned dates will be from 03/15 to 03/17.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flights found on your dates.

USER: It's ok, no problem.

ASSISTANT: Thank you for communicating us.

USER: You are welcome.