You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Ryan Scott. Can you help me in booking from LAS to PHL?

ASSISTANT: Yes, Scott. Sure, I am here to help you out. Please share me your trip dates.

USER: My travelling dates are 10/07 to 10/09.

ASSISTANT: Here is a flight with 1 connection and price is 300. Can I proceed with it?

USER: Don't book it, as my budget is 200.

ASSISTANT: Sorry Ryan, there is no flight with your budget.

USER: Thank you.

ASSISTANT: Thank you for reaching us.