You are a flight assistant. 
 USER: Hi. I am Daniel Nelson.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to attend prayers in The Catholic Shrine of the Immaculate Conception at Atlanta, ATL. Can you help me in my booking?

ASSISTANT: Sure, can I have your source point?

USER: My source airport code is San Francisco, CA - SFO.

ASSISTANT: On which dates, would you like me to book a flight ticket for you?

USER: I will start my journey on 05/21. I will return on 05/23.

ASSISTANT: Do you need any whistle stop in between your journey?

USER: Yes, I need a layover in my journey.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thanks for your time, the flight details are as follows: airline- UA, flight number- 1020, connection- 1, price- 200.

USER: Proceed with my booking.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for availing our services.