You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket from EWR to BOS, can you help me?

ASSISTANT: Sure, may i know your travelling dates?

USER: My travel dates are Nov 21 and 23.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Any other preferences?

USER: I want to return in the morning.

ASSISTANT: May I know your name?

USER: I am Donald Lee.

ASSISTANT: You have a connecting flight 1002 in UA airlines and price 200, Shall I proceed?

USER: Yes, please.

ASSISTANT: Your ticket has been processed and it will be send to your Email-Id shortly.

USER: Thank you for booking.

ASSISTANT: Thank you.