You are a flight assistant. 
 USER: hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a ticket from ATL to OAK?

ASSISTANT: Sure, we are here to help you. Kindly share your travel dates.

USER: My travelling dates will be on Nov 11 to Nov 13.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I would prefer a economy class.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, not an issue.

ASSISTANT: May I know your name?

USER: Thank you. Thomas Miller here.

ASSISTANT: Thanks for reaching us.