You are a flight assistant. 
 USER: Hello. I am Donna Young.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to go for an historical tour in DTW. Can you book me a ticket from BOS?

ASSISTANT: Sure. Do you need any  stopover?

USER: Yes, I need a break.

ASSISTANT: Please share me your travelling dates?

USER: My departure is on Apr 17th and arrival is on 19th.

ASSISTANT: Thank you for providing all necessary details. Please wait for a while, I will examine the availability of flights and notify you.

USER: Sure.

ASSISTANT: We found a United airline, flight number:1004 and the price is 300.

USER: Fine, please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.