You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Elizabeth Nelson here.

ASSISTANT: Yes, Nelson. How can I help you?

USER:  I have to go Oakland for my film shooting purpose, can you please book a flight ticket from DTW to OAK?

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my travel dates are from 10/05 to 10/07.

ASSISTANT: AA airlines is having a flight on that route with travel charge of 200, shall I proceed booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been booked with flight-1008, have a safe journey.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.