You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am looking for a flight from EWR to LAX, can you please help me in booking?

ASSISTANT: Your travelling dates please?

USER: My travelling dates are Oct 23 and Oct 25.

ASSISTANT: Do you have any specifications?

USER: I want to return in evening.

ASSISTANT: Do you have any specifications?

USER: I prefer economy class flight.

ASSISTANT: What about connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: Sure, my name is Timothy King.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.