You are a flight assistant. 
 USER: Hello, I am Matthew Williams.

ASSISTANT: Hello, How may I abet you?

USER: Can you help me book a direct flight from Charlotte to attend live concert at Dallas & Fort Worth?

ASSISTANT: Sure, I am here to aid you. When did you planned to travel?

USER: I would like to travel on 12/26 and 12/28.

ASSISTANT: Can you please share me your boarding and landing airport codes?

USER: My source is CLT and destination is DFW.

ASSISTANT: Ok, wait for a while. I will revert to you.

USER: Ok.

ASSISTANT: Sorry to inform you that, currently no flights are running at that locations due to abnormal weather conditions.

USER: Thank you for the information.

ASSISTANT: Thanks for reaching us, have a good day.