You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Edward Collins here. Can you make my reservation from MCO to DTW?

ASSISTANT: Sure, may I know your travel dates please?

USER: My travelling dates are from 06/20 to 06/22.

ASSISTANT: As per your details, there are no flights available for you.

USER: That's fine.

ASSISTANT: Thank you for choosing us.

USER: Welcome.