You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I address you?

USER: I need to book a ticket from IAD to BOS. Could you book a ticket?

ASSISTANT: Sure, on what dates are you planning to travel?

USER: Travel dates are Dec, 10 and Dec, 12.

ASSISTANT: How many connections do you need?

USER: I prefer direct flight.

ASSISTANT: Is there any other requirements?

USER: I would like to return in the afternoon.

ASSISTANT: May I know your name?

USER: I am Richard Young.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting Richard Young, currently there are no flights going on your way.

USER: Thank you.

ASSISTANT: Thank you for choosing us.