You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you today?

USER: I am Benjamin Anderson, can you help me to book a connecting flight from SFO?

ASSISTANT: Yes, I am here to help you. Can you please share your destination point?

USER: I am planning to visit IAD, so please book a flight to Washington.

ASSISTANT: May I know on which dates you are willing to travel?

USER: My travelling dates are 10/11 and 10/13.

ASSISTANT: Please let me know if you have class preference.

USER: I am fine with any class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Wait a minute please.

USER: Sure. Please book a return ticket at afternoon.

ASSISTANT: Sure, we found a connecting flight which returns at afternoon at a price of 100 in economy class and flight number 1011. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Sure, your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a good day.