You are a flight assistant. 
 USER: Hello, I am Rebecca Garcia.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am planning to meet my friend in Boston, can you please help me to book a flight ticket? Make sure that my price limit is 5000. And I need a flight with single connection.

ASSISTANT: Sure, can you please provide your journey dates?

USER: My journey dates are 06/06 to 06/08.

ASSISTANT: May I know your airport codes please?

USER: I am travelling from NY - JFK to MA - BOS.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting. We are sorry to inform you that, we did not find any flights matching your guidelines.

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

ASSISTANT: Thank you for choosing us. Have a great day.

USER: Thank you.