You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I would like to attend religious festivals at Seattle, SEA. Can you do the reservation?

ASSISTANT: Sure, may I know your source code?

USER: My source point is Charlotte, CLT.

ASSISTANT: Let me know your travelling dates.

USER: Dates are 08/17 and 08/19.

ASSISTANT: Do you have any connection limit?

USER: I need only direct flight.

ASSISTANT: Please provide your name.

USER: Paul Allen here.

ASSISTANT: Thanks for waiting, there is no direct flight available with your given specified dates.

USER: No problem, I will check with another airline. Thanks for the service.

ASSISTANT: Ok, thank you.