You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Paul Collins. Please book me a ticket from CLT to DFW to meet my family.

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

USER: I have planned to travel on 06/30 and 07/02.

ASSISTANT:  Thanks for sharing your details, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for your positive response.