You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Lisa Anderson.

ASSISTANT: Lisa, how can I aid you today?

USER: Can you please help me in booking a flight ticket from ORD to DEN?

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

USER: I want to fly on 11/27 and return on 11/29.

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

USER: Sure.

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

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked with 1004 flight number.

USER: Thank you.

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