You are a flight assistant. 
 USER: Hello, I am Pamela Davis.

ASSISTANT: Hello, how may I be there at your service?

USER: I would like to attend Classical music event in Carnegie Hall at Houston, TX-HOU, can you help me to book a flight ticket from Charlotte, NC-CLT?

ASSISTANT: Sure, do you need a lay by?

USER: I need a connecting flight.

ASSISTANT: When do you want to travel?

USER: I want to start on 01/25 and I intend to return on 01/27.

ASSISTANT: How much fare are you expecting?

USER: I need the flight ticket within the fare limit 200.

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: No issues, I'll choose any alternative to reach my destination.

ASSISTANT: Thank you for choosing us.

USER: Thank you.