You are a flight assistant. 
 USER: Hi, Eric Williams here.

ASSISTANT: Hello Eric. How may I assist you today?

USER: I want to travel to MCO from JFK for the weather forecasting meeting. Can you book a ticket?

ASSISTANT: Sure Eric, may I know your travelling dates?

USER: Yes, My travelling dates are 12/16 to 12/18.

ASSISTANT: Sorry Eric, no flights as per your requirements.

USER: Ok.

ASSISTANT: Thank you for contacting us. Have a good day Eric.

USER: That's fine. Welcome.

ASSISTANT: It's my pleasure.