You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Alexander Robinson.

ASSISTANT: How may I assist you?

USER: I am planning to travel from AUS to MCO, can you help in booking a flight?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates are 08/11 to 08/13.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Alexander Robinson, there are no flights available in your route.

USER: That's ok, thank you.

ASSISTANT: Thank you for approaching us.