You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jerry Jones.

ASSISTANT: How may I assist you Jerry Jones?

USER: I want to spend this weekend with my sister, who is living in San Francisco. So, I need you assistance in booking a ticket.

ASSISTANT: Sure, I can assist you in that. Please mention your travel dates?

USER: My journey dates are 03/12 and 03/14.

ASSISTANT: May I know your airport codes?

USER: Source code is AUS. Destination code is SFO.

ASSISTANT: OK. We found a connecting flight in UA airline with a fare 200 available for you. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Your ticket has been confirmed with 1020 flight.

USER: Thanks for your help.

ASSISTANT: Thanks for picking us.