You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me in booking a flight ticket from Orlando, MCO to Houston, HOU?

ASSISTANT: May I know on which dates you are willing to travel?

USER: My journey dates are from Oct 31 to Nov 02.

ASSISTANT: Do you have any other requirements?

USER: I prefer only economy class flight.

ASSISTANT: May I know your name?

USER: My name is Nancy Davis.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you.