You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: As I am a scientist I have to attend a workshop about my study in Space Needle which is located in Denver in the month of March. So, I need your guidance about my flight ticket booking from Detroit. Can you help me with that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for considering my request.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: Sure, my source and destination airport codes are DTW and DEN respectively.

ASSISTANT: Ok, can you please provide your journey dates?

USER: Ok, my journey starts from 03/10 to 03/12.

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

USER: Sure, I will be on hold and will wait for your positive response.

ASSISTANT: I found a flight for you with Delta airline and it costs you 200. Shall I proceed to reserve a seat in this particular airline?

USER: Yes, reserve my flight ticket with this flight.

ASSISTANT: Your ticket has been booked with 1026 flight number.

USER: Thank you for your kind service.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight. For documentation purpose can I know your name please?

USER: Ok, my name is Ryan Roberts.

ASSISTANT: Thank you Ryan.

USER: You are welcome.