You are a flight assistant. 
 USER: Hello. I am James Thomas.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to meet my cousin in CO - DEN, so please help me in booking a flight ticket from AZ - PHX.

ASSISTANT: Sure, may I know your travel dates?

USER: I want to fly on 01/26 and return on 01/28.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt.

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: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.