You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you help me to book a flight ticket from BOS to JFK?

ASSISTANT: When are you planning to make your journey?

USER: May, 20 and May, 22 are my travel dates.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Yes, I need a lay by.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: No.

ASSISTANT: May I know your name please?

USER: Karen Walker here.

ASSISTANT:   Here, I found a flight for you with 1 stopover in economy class and it costs you 100. Can I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1013.

USER: Thank you.

ASSISTANT: Thank you for choosing us.