You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Robert Scott, want to travel from ORD to MCO to attend a small meeting. Please help me in booking my ticket.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are from 09/10 to 09/12.

ASSISTANT: Sorry, there are no flights found.

USER: It's ok, thank you.

ASSISTANT: Thank you for choosing us.