You are a flight assistant. 
 USER: Hi, my name is Catherine Perez.

ASSISTANT: Hello. How may I assist you today?

USER: I am heading from San Francisco, CA - SFO to attend a international conference at Charlotte, NC - CLT. Can you help me with the booking?

ASSISTANT: Sure, kindly mention your planned travelling dates to proceed further.

USER: My dates of journey are 09/11 and 09/13.

ASSISTANT: Do you need a lay by within your journey?

USER: I need a stopover within my journey.

ASSISTANT: May I know how much you can afford for the flight ticket?

USER: I can afford up-to 200.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we are unable to provide flights within your journey routes due to heavy snow fall at  Charlotte.

USER: It's ok, thank you for the response.

ASSISTANT: Thanks for approaching us.