You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Margaret Lopez. Can you please book a flight ticket from DTW to BOS?

ASSISTANT: Sure, I will you to book a flight ticket. Can you please share me your travelling dates?

USER: Sure, I need to travel on dates of 07/18 and 07/20.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: Here, I found a flight for you with single connection and ticket fare is 600. Shall I proceed for booking?

USER: No, I can afford 500 only for ticket. So please recheck with that.

ASSISTANT: As per your request, I found a flight for you. Shall I proceed for booking?

USER: Sure, you can proceed with booking.

ASSISTANT: Your ticket is booked with flight number 1009 and airline is Delta.

USER: Thank you for your help.

ASSISTANT: Welcome. Have a safe flight. Thank you for choosing us.