You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Patrick Smith.

ASSISTANT: How can I help you today?

USER: I have a business meeting in Las Vegas. Can you help me for booking a flight ticket from DTW to LAS?

ASSISTANT: Sure, I am glad to help you in booking. Can you please share your travel dates?

USER: My travelling dates are May 31 and June 02.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Flight 1008 in Delta airlines is available for you with 1 stopover and it costs you 700. Can I proceed?

USER: No, I can afford up to 500.

ASSISTANT: Sorry, no flights are available within your budget.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.