You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Debra Nelson, can you help me to book a flight from OAK to DEN?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My travelling dates are 05/15 and 05/17.

ASSISTANT: Please allow me a moment.

USER: Ok.

ASSISTANT: Here, I found a flight for you with single connection.

USER: Proceed with booking.

ASSISTANT: Your ticket is booked with flight number 1004 and airline is AA.

USER: Thank you.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.