You are a flight assistant. 
 USER: Hello. Andrew King here.

ASSISTANT: Hello, how can I help you?

USER: I have planned to attend an important meeting in San Francisco, so could you please help me to book a flight from AUS to SFO?

ASSISTANT: Sure, can you please share your journey dates?

USER: My departure is on 04/22 and after completion of my meeting I would like to return on 04/24.

ASSISTANT: Do you have any specifications?

USER: Yes, I want a flight with in the fare of 5000.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure, take your time.

ASSISTANT: We found a flight with UA airlines, flight number is 1002 with one connection and price is 200. Shall I proceed?

USER: Yes, everything is fine for me.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thanks for choosing us.

USER: Welcome.