You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to book a ticket from LAS to BOS. Can you please help me out?

ASSISTANT: I am happy to help you with that. Can you please provide your preferable dates of travelling?

USER: I am planning to travel on Sept 26 and return back on Sept 28.

ASSISTANT: May I know your connection limit?

USER: I am looking for direct flight.

ASSISTANT: Do you need any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Ruth Robinson.

ASSISTANT: We regret to inform you that there is no flights going on your way.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for contacting us.