You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to search a flight from Las Vegas, NV-LAS?

ASSISTANT: Sure, on which date you are planning to take off?

USER: I am planning to take off  on 12/20.

ASSISTANT: Ok, may I know your destination details?

USER: Sure, the destination airport code is GA-ATL.

ASSISTANT: On which date you like to come back?

USER: The return date is 12/22.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: There is a flight available for you with 1 connection. Shall I proceed?

USER: No, I want the flight with 0 connection limit.

ASSISTANT: Sorry, there are no flights available with 0 connection. May I know your name please?

USER: Ok, my name is Joseph Mitchell.

ASSISTANT: Ok.

USER: Thank you for your information.

ASSISTANT: Thank you to approach us.