You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Ryan Parker. I want to book a flight from SEA to LAS. Can you please make a reservation for me?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, I want to depart on Nov 6 and need to return on Nov 8.

ASSISTANT: Do you have any specification?

USER: Yes, I need a connecting flight which returns in the afternoon time with normal-cost airline.

ASSISTANT: Do you prefer economy or business class?

USER: I am comfortable with any class.

ASSISTANT: We found a economy flight on your details with American Airlines, flight number: 1008. Shall I book this ticket?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.