You are a flight assistant. 
 USER: Hello, I am Rebecca Scott.

ASSISTANT: Hello, how can I assist you today?

USER: I got invitation for San Francisco nights music festival, Can you please book a flight ticket?

ASSISTANT: Sure, can I have your journey details?

USER: I want to travel from IL - ORD, to CA - SFO. The travelling dates are on 07/12 and 07/14.

ASSISTANT: Ok, please wait for a while, let me check with the availability and revert to you.

USER: Ok.

ASSISTANT: Thanks  for waiting, we are glad to inform you that we have found a flight of Delta airline, flight number-1005 connections-1 and price limit is 200. Shall I proceed to booking?

USER: Ok, please proceed.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thank you for your help and support.

ASSISTANT: You are welcome, thanks for your interest.