You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best assist you?

USER: I need to make a flight reservation to Boston for my birthday shopping. Can you please help me in booking my ticket?

ASSISTANT: Sure, I am here to help you. May I know your journey dates?

USER: My journey dates are on 02/20 and return on 02/22.

ASSISTANT: May I now your airport codes?

USER: Sure, my airport codes are from LAS to BOS.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need one connection. 200 is my price limit.

ASSISTANT: Please provide me your good name?

USER: Ashley Miller is my name.

ASSISTANT: We found that there is no flight found on your price limit.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for connecting us and have a great day.