You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Lisa Phillips, want to travel from JFK to MCO. Please help me in booking my ticket.

ASSISTANT: Sure, on which dates you are planning to travel?

USER: Sire, my travelling dates are from 03/31 to 04/02.

ASSISTANT: Sorry to inform you that but there is no flights available on these dates.

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

ASSISTANT: Most welcome.