You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you?

USER: Book a ticket from LGA - LAS under a fare of 500.

ASSISTANT: Sure, I am here to do that. Please share me your trip dates?

USER: 11/03 and 11/05 are my travel dates.

ASSISTANT: Do you have any other requirements?

USER: Yes, my price limit is 500. And I need a connecting flight.

ASSISTANT: May I know your name please?

USER: Deborah Adams is my name.

ASSISTANT: Thanks for providing your name, but no flights are available on your route.

USER: That's ok, not a problem.

ASSISTANT: Thank you for opting us, have a good day.

USER: Thank you for your response.