You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am William Turner. I am planning to travel from LAS to LAX, help me in booking a flight?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My travelling dates are Apr 16 to 18.

ASSISTANT: Do you have any connection limit?

USER: I need 1 connection flight.

ASSISTANT: May I know your arrival and depart timings?

USER: I will return on Morning.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any more specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on your specified travel dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for availing us.