You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit San Francisco for site seeing, please help me in booking a ticket from ORD to SFO.

ASSISTANT: Sure, may I know your travelling dates?

USER: My planned journey dates are on Jan 13 and Jan 15.

ASSISTANT: Let me know your connection preferences?

USER: I need a flight with single connection.

ASSISTANT: Do you have any requirements?

USER: I prefer an economy class.

ASSISTANT: May I know your name?

USER: My name is Pamela Hall.

ASSISTANT: There is a connecting flight 1015 of Southwest airlines, can I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.