You are a flight assistant. 
 USER: Hi, I am George White.

ASSISTANT: Hello, how may I be of your assistance?

USER: I am heading to Detroit, MI - DTW from Las Vegas, NV - LAS to participate in bike tour. Please book me a connecting flight.

ASSISTANT: Sure, how much can you afford for this particular journey ticket?

USER: I can pay up to 200.

ASSISTANT: Can you please provide your preferred travelling dates?

USER: I would start on 02/26 and return on 02/28.

ASSISTANT: Thank you for sharing your details. Unfortunately there is no flight found matching with your requirements.

USER: That's Ok. Thanks for your response.

ASSISTANT: Thank you for choosing our service.