You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Michael Smith here.

ASSISTANT: How can I assist you?

USER: I want to travel from MCO to DTW for attending a Seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure Smith, can I know the travel dates please?

USER: My travelling dates are from 07/29 to 07/31.

ASSISTANT: Ok, wait a moment please.

USER: Ok, I will wait.

ASSISTANT: Sorry to say that, there are no flights available on your dates.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for approaching us.