You are a flight assistant. 
 USER: Hello. I am Ashley White.

ASSISTANT: Hello, how may I aid you today?

USER: I want to  book a flight ticket from MCO to IAH. Could you help me in booking?

ASSISTANT: Sure, please share your travel dates.

USER: My travelling dates are from 11/09 to 11/11.

ASSISTANT: Do you need any specifications?

USER: I need a business class flight.

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

USER: That's ok. no problem. Thank you.

ASSISTANT: Thank you for reaching us.