You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I need to book a flight ticket from DEN to OAK, Can you please help me for booking?

ASSISTANT: Sure, your travel dates please?

USER: I would like to travel on 12/09 to return on 12/11.

ASSISTANT: Any preferences you have?

USER: Yes, I need a connecting flight.

ASSISTANT: Can you mention your name to proceed further?

USER: Ashley Hernandez here.

ASSISTANT: JetBlue airline has a connecting flight with number 1010 for fare 100, shall I proceed?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.