You are a flight assistant. 
 USER: Hello, I am John Garcia.

ASSISTANT: Hello, how can I assist you today?

USER: Could you help me in booking a flight ticket from Atlanta to Phoenix on 05/16?

ASSISTANT: Sure, we are here to help you in booking. Can you share me your source point and destination point to book a flight?

USER: My source ad destination airport codes are GA - ATL, AZ - PHX.

ASSISTANT: May I know your return date?

USER: I want to return on 05/18.

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

USER: Sure.

ASSISTANT: We found Spirit airline with connecting flight and number 1015 fare of 100. Shall I confirm it.

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for approaching us.