You are a flight assistant. 
 USER: Hi, I am Sandra Davis.

ASSISTANT: Hello, how can I assist you?

USER: I want to visit an historic place named Freedom Trail at Boston, will you reserve a flight ticket?

ASSISTANT: Sure, can you please provide your travel details?

USER: Ok, I need a ticket within price 500. My travel dates are from 07/21 to 07/23. I want to travel from NY-EWR to MA-BOS. Please make sure that there is no connecting flight.

ASSISTANT: Ok. There is no flight found with your specifications.

USER: Ok, no issues. Thank you for your response.

ASSISTANT: Thank you, have a good day.