You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you help me in booking a flight ticket form LAS to BOS?

ASSISTANT: Sure, I am gleeful to help you with that. May I know your planned journey dates?

USER: I want to travel on 09/04, and return on 09/06.

ASSISTANT: Do you have any other specification?

USER: I need a break in my journey.

ASSISTANT: May I know your name please?

USER: I am Joshua Scott.

ASSISTANT: Sorry to say that, there are no flights found on this route as per your details.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thanks for the information.