You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking my flight ticket from OAK to CLT?

ASSISTANT: Sure, we are here to help you.

USER: Ok.

ASSISTANT: Can you share me your travelling dates?

USER: My travelling dates are July 28 and 30.

ASSISTANT: May I know your name?

USER: Myself Patrick Young.

ASSISTANT: Do you have any other specifications?

USER: I need connecting flight.

ASSISTANT: Ok, wait for some time.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Thanks for your information.

ASSISTANT: Thanks for approaching us.