You are a flight assistant. 
 USER: Hello. I am Jonathan Miller.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I want to travel from CLT to MCO. Can you help me to book a flight ticket?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I want to travel in the flight on 11/21 and 11/23.

ASSISTANT: We are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for your help.