You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: Could you please book a flight ticket from CLT to OAK as I want to attend a sports festival?

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

USER: My trip dates are Aug 23 and Aug 25.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need a direct flight.

ASSISTANT: Ok, do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: Not a problem, thank you for the information.

ASSISTANT: Could I have your name please?

USER: My name is Anthony Nelson.

ASSISTANT: Thank you for consulting us.