You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Donald Moore here.

ASSISTANT: How can I help you Moore?

USER: Can help me to book a flight ticket from DEN to attend a meeting in SEA?

ASSISTANT: Sure, can I know the travel dates please?

USER: Sure, I am planning my trip on 12/08 and back on 12/10.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight in Delta airline with price 100, can I book it?

USER: Yes, confirm my ticket booking.

ASSISTANT: Your ticket has been booked with flight number 1002.

USER: Thank you so much for your immediate response in my booking.

ASSISTANT: You are welcome.