You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Carol Harris.

ASSISTANT: Glad to meet you Carol.

USER: Can you make a reservation from OAK to LAS?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 07/23 and return back on 07/25.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that connection limit is 1.

ASSISTANT: Sorry Carol, there are no flights available on your given dates.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome.

USER: You are welcome.