You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Karen White here.

ASSISTANT: How may I help you?

USER: Could you book my ticket in the evening from ORD to MCO?

ASSISTANT: Karen White, I am willing to help you for this. When would you like to travel?

USER: My trip dates are Nov 5 and Nov 7.

ASSISTANT: Is there any requirements regarding your journey?

USER: I need a connecting flight and I prefer economy class.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry for inconvenience, no flights are found with your criteria.

USER: No problem, I will find an alternative mode of transport.

ASSISTANT: Ok.

USER: Thank you for the help.

ASSISTANT: Thank you very much for approaching our agency.