You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: My name is Edward Robinson and I want to visit my uncle who stays in Oakland. Can you please help me in book the ticket from DEN to OAk?

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

USER: My travel dates are 04/12 and 04/14.

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

USER: Please take your time.

ASSISTANT: I found a flight for you with Hawaiian airline and it costs you 200. Shall I proceed?

USER: Yes, you can proceed with the booking.

ASSISTANT: Your ticket has been booked with 1013 flight number.

USER: Thank you for your assistance.

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