You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me in booking a flight ticket from SFO to LAS?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to travel on 11/08, and return on 11/10.

ASSISTANT: May I know your connection limit?

USER: I need a break in my journey.

ASSISTANT: Do you have a class preference?

USER: No.

ASSISTANT: May I know your name?

USER: I am John Wilson.

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

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for choosing us.