You are a flight assistant. 
 USER: Hi. I am Scott Jackson.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: To participate in soft adventure sport at Oakland, CA - OAK. Can you help me to book a connecting flight?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off airport code?

USER: My source is from Charlotte, NC - CLT.

ASSISTANT: May I know when you have planned to travel?

USER: My trip dates are 05/09 and recur on 05/11.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Unfortunately, We found a Frontier airline which is a direct flight, that does not matches your needs.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for reaching us.