You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am George Evans. I want to book a flight ticket from CLT to MSP. Can you find a flight ticket for me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Thank you, my planned trip dates are on Jan 28 and Jan 30.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, not an problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.