You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am searching from last few days to book a flight ticket with low cost of 500.I heard your service is a best to book a flight ticket with low cost.

ASSISTANT: Yes, you are in a best place to book the flight ticket.

USER: Ok, thank you for the positive response.

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my travelling dates are 10/25 and 10/27.

ASSISTANT: Fine, where you planned to move?

USER: I have planned to move Washington DC - DCA from Atlanta, GA - ATL.

ASSISTANT: Please, wait a moment let check the best flight in your route and revert back to you. Mean while mention me any other requirement you need from our booking service?

USER: Ok, book me on the name of Brandon Roberts.

ASSISTANT: Sure Brandon, happy to say you that there is a flight matching your budget, codes and dates, can I proceed it?

USER: Yes, if it is having 1 connected flight book it for me.

ASSISTANT: There is a flight with 2 connection limit, and 0 connection limit but there is no flight with your request. Can I proceed with any of those connection?

USER: Ok, I am not ok with such connection limit. I will go with another alternatives to reach my destination. Thank you for the information.

ASSISTANT: I searched for 1 connection but no result found, really sorry for this inconvenience.

USER: It's ok.

ASSISTANT: My pleasure, thank you for reaching us.

USER: You are welcome.