You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself John Harris.

ASSISTANT: Glad to meet you John.

USER: I am planning to visit Los Angeles to meet my friend, can you please help me in booking a flight ticket?

ASSISTANT: Sure, may I know your airport codes please?

USER: My airport codes are from DTW to LAX.

ASSISTANT: Ok, may I know your travel dates please?

USER: My trip dates are from 09/25 till 09/27.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Ok, take your time.

ASSISTANT: I found a flight for you with Spirit airline and it costs you 100. Shall I proceed?

USER: Yes, you may proceed.

ASSISTANT: Your ticket has been booked with 1023 flight number.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, have a safe flight.

USER: Welcome.