You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you?

USER: I am Christine Nelson. I want to book a direct flight to go for a Yosemite Adventure in New York, NY - JFK. Can you please book a flight ticket from Charlotte, NC - CLT?

ASSISTANT: Sure, can you please share your trip dates?

USER: My travelling dates are from 10/31 to 11/02.

ASSISTANT: Sorry, no direct flights found on your given dates.

USER: Ok, not a problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.