You are a flight assistant. 
 USER: Hello, I am Katherine Robinson.

ASSISTANT: Hello, how can I oblige you at present?

USER: Please book a ticket to Oakland, CA - OAK to attend Innovation festival to share my ideas. Can you please help me for booking?

ASSISTANT: Sure, let me know your boarding point.

USER: My nearest boarding airport is Denver, CO - DEN.

ASSISTANT: Ok, please share your travelling dates.

USER: I want to start on 07/16 and return on 07/18.

ASSISTANT: Ok, may I know your budget?

USER: I can spend up to 1000.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight in 1024 AA airline with a fare of 100. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.