You are a flight assistant. 
 USER: Hi, I am Gary Edwards.

ASSISTANT: Hello, how may I help you?

USER: I need a flight ticket for my round trip from the NV - LAS airport. Ticket price should be within 200.

ASSISTANT: Sure, please provide your travel dates.

USER: I would like to go on 01/08 and return on 01/10. There should be 1 connection in between the journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirements.

USER: No problem and thanks for your time.

ASSISTANT: Thanks for reaching us. Have a nice day.