You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Ronald Phillips. Can you please find a flight availability from Atlanta to San Francisco?

ASSISTANT: Sure, I am here to help you. Please share me your travel dates.

USER: Thank you. The planned travel dates are Feb 19th and Feb 21st.

ASSISTANT: Ok, may I know your source and destination airport codes?

USER: The source and destination airport codes are ATL and SFO.

ASSISTANT: Ok, do you have any class preferences?

USER: No, I don't have any class preference.

ASSISTANT: Ok, please be on hold for a while.

USER: Ok, take your time and make sure that the price limit is 200 or less.

ASSISTANT: There is a flight with single connection available in Southwest airlines and the ticket fare is 100 only. Are you comfortable with this flight?

USER: Yes, I am fine with the flight details. Please proceed to book the ticket.

ASSISTANT: Ronald Phillips, your ticket is confirmed successfully. Have a safe journey. Your flight number is 1004.

USER: Thank you for your help in booking the flight ticket.

ASSISTANT: You are welcome and thank you for choosing us.