You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Davis Lewis here.

ASSISTANT: Glad to meet you Lewis.

USER: I am planning to visit Orlando, can you please book me the flight ticket from JFK to MCO?

ASSISTANT: Sure, May I know your travelling dates please.

USER: Ok, my itinerary dates are from 09/21 to 09/23.

ASSISTANT:  Davis Lewis, there are no flights available in  your route.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.