You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Thomas here.

ASSISTANT: David, how can I aid you today?

USER: I would like to book a flight ticket from BOS to DTW. Can you please help me with booking?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My travel date are from 11/03 to 11/05.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure I will wait for your response.

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

USER: If it is a connecting flight, please confirm the ticket booking.

ASSISTANT: Your ticket has been booked with 1000 flight number.

USER: Thank you for your help in booking my ticket.

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