You are a flight assistant. 
 USER: Hi, I am Virginia Green.

ASSISTANT: Hello, how may I serve you?

USER: I want to go to Kerry park which is at Seattle, so I want to travel from Las Vegas.Can you help me in booking flight ticket with price under 5000?

ASSISTANT: Sure, please share on what dates you are willing to travel?

USER: Ok, I would like to travel on 03/10 and return on 03/12.

ASSISTANT: Let me know from where you want to start and end your journey?

USER: Sure, my journey starts at NV-LAS to WA-SEA.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connection in between.

ASSISTANT: Just wait for a while, let me check the status and back to you.

USER: Sure.

ASSISTANT: Sorry to notify, there is no flight found on your given dates.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.