You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I am Anna Clark. Can you please reserve me a flight ticket from DTW to SFO?

ASSISTANT: Sure, may I know your travelling dates?

USER: Travelling dates are 09/21 and 09/23.

ASSISTANT: Do you need any stopover in between the journey?

USER: Yes, I need a stop over.

ASSISTANT: There is a flight available with number 1009 in Delta airline.

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.