You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket to attend my sister's marriage in PA - PHL. Can you help me in booking a flight ticket from CA - SFO?

ASSISTANT: Sure, kindly mention your travel dates?

USER: I will fly on 08/16 and arrival on 08/18.

ASSISTANT: There is a flight with your requirement, airline is UA with price 100 and single connection.

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thanks for assisting me. I am Shirley Hall.

ASSISTANT: Thanks for reaching us, have a good day.