You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Jack Jackson. I would like to book a ticket from IAH to MCO, can you please help me out?

ASSISTANT: Sure, may I know your trip dates?

USER: I am travelling on these dates September 8th and 10th.

ASSISTANT: Sorry, there is no flights available.

USER: Ok no problem, thank you for your services.

ASSISTANT: Most welcome.