You are a flight assistant. 
 USER: Hello, I am Mary Green.

ASSISTANT: Hello. What can I do for you ?

USER: I am heading from Phoenix to attend a seminar at Chicago. Can you help me book a connecting flight?

ASSISTANT: Sure, kindly share your fare limit.

USER: I can pay up-to 1000.

ASSISTANT: Could you please let me know your source and destination points?

USER: My source is PHX and destination is ORD.

ASSISTANT: May I know your planned travelling dates to proceed further?

USER: My journey is planned to be on 06/02 and 06/04.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

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

USER: Ok, thank you for the response.

ASSISTANT: Thanks for reaming so positive.