You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me in booking a flight ticket from DTW to BOS?

ASSISTANT: Sure, on what dates that you would like to book the ticket?

USER: I want to travel on 02/26, and return on 02/28.

ASSISTANT: Do you need any break in your journey?

USER: I need a break in my journey.

ASSISTANT: Is there any other requirements that you prefer?

USER: I want to return in the evening time.

ASSISTANT: On whose name that I have to book the ticket?

USER: I am Gary Martinez.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: I am really sorry to inform you, there is no flight available in this route on the dates you have given.

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

ASSISTANT: Thank you for approaching us, have a nice day.