You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I best support you today?

USER: I am Ruth Green and I want to book a flight ticket with price under 500. Can you help me with it?

ASSISTANT: Sure, I would be happy to help you. Please assign your journey dates?

USER: I would like to start my trip on 02/26 and come back on 02/28.

ASSISTANT: Ok, What are your airport codes?

USER: I want to head to New York, NY - LGA from Las Vegas, NV - LAS to enjoy the Roosevelt Island Aerial tram ride.

ASSISTANT: Do you have any connection limit?

USER: Yes, I would feel comfortable if I have 1 connection with in my journey.

ASSISTANT: Ok, please give me a minute to check.

USER: Sure take your own time.

ASSISTANT: We are sorry to notify that there is no flight found on your journey details.

USER: That's fine. Thanks for your assistance.

ASSISTANT: Thanks for opting us, have a nice day.