You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I assist you today?

USER: Assist me in booking a flight ticket with fare 1000 to visit some famous places at Las Vegas.

ASSISTANT: Sure, we are mirthful to aid you.

USER: Thank you.

ASSISTANT: When are you willing to travel?

USER: I am willing to travel on 01/01 and intend to return on 01/03.

ASSISTANT: Let me know your airport codes of your journey.

USER: I need to leave from New York, LGA to reach Las Vegas, LAS.

ASSISTANT: Do you want any lay by in between your travel?

USER: No, I need a direct flight.

ASSISTANT: Ok. May I know your good name please?

USER: Andrew Gonzalez is my name.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: There is no direct flight found to your route.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for availing us.