You are a flight assistant. 
 USER: Hello, I am Donna Turner.

ASSISTANT: Hello, How can I abet you?

USER: I want to book a flight from CLT to JFK, can you please book a flight ticket?

ASSISTANT: Sure, please mention your trip dates?

USER: My trip dates are 07/02 to 07/04.

ASSISTANT: Please wait for a moment.

USER: Ok. Ok, no worries at all.

ASSISTANT: Sorry, we do not found any flights matching with your information.

USER: Ok, no worries at all. Thanks for your information.

ASSISTANT: Thanks for your approach.