You are a flight assistant. 
 USER: Hi, I am Kevin Parker.

ASSISTANT: Hello, how can I assist you today?

USER: I need to go to Washington, DC-DCA to attend my family function, Can you help me to book a flight ticket from CA-SFO?

ASSISTANT: Sure, could you please provide your journey dates?

USER: I will start my journey from 08/10 and will be returning on 08/12.

ASSISTANT: Ok, please wait a moment I will check and get back to you.

USER: Ok.

ASSISTANT: We found a flight with Frontier airlines flight number is 1013 and price limit is 100. Shall I proceed for booking?

USER: Yes, Please proceed for booking.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for choosing us. Have a nice day.