You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Kevin Lee.

ASSISTANT: How may I help you?

USER: I am planning to travel from LGA to DTW to attend music concert at Detroit.

ASSISTANT: Sure, I will help you to travel Detroit. Can you please provide me your travelling dates?

USER: Sure, I would like to take on 05/15 and return back on 05/17.

ASSISTANT: Give me a moment. I found a flight for you with 1 connection.

USER: Ok, but please make sure that the price limit does not exceed 200.

ASSISTANT: The ticket price is 100.

USER: Ok, please proceed with the booking.

ASSISTANT: Shall I proceed for booking? Your ticket is confirmed with flight number 1000.

USER: Thank you for your help.

ASSISTANT: Welcome.