You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Linda Hall here, I want to reserve my ticket from OAK to DEN, can you please help me out?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my planned dates of journey are from Sep, 15 to Sep, 17.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Is this flight is having a return time at afternoon.

ASSISTANT: Yes, the flight return in afternoon.

USER: Ok, then book it.

ASSISTANT: Your ticket is booked, flight number 1023.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for opting us.