You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Please help me to book a flight ticket from ORD to BOS.

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates are from Aug, 12 to Aug, 14.

ASSISTANT: Do you have any preferences?

USER: I need a single connecting flight and I prefer an economy class.

ASSISTANT: There is a connecting flight with number 1026 in airline Delta, the fare is 200 in economy class. Can I book it?

USER: Please go ahead.

ASSISTANT: May I know your name?

USER: My name is Jerry Perez.

ASSISTANT: Your ticket is reserved, the depart time is 18:00 PM and return time is 3:00 AM.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.