You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to visit a trip at Las Vegas, LAS to SEA. Can you please help me with booking a flight ticket?

ASSISTANT: Your travelling dates please?

USER: My planned travel dates are from June 02 to June 04.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection limit.

ASSISTANT: Is there any other specifications?

USER: My depart time should be in the afternoon.

ASSISTANT: May I know your name please?

USER: Sure, myself Charles Perez.

ASSISTANT: I am sorry no flights found on your route.

USER: That's ok, no problem. Thank you for your service.

ASSISTANT: Thank you for choosing us.