You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Katherine Lewis here, can you help me to book a flight from ATO on June 01?

ASSISTANT: I am here to help you, may I know your return journey details?

USER: I am planning to return from LGA on June 03.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: I am looking for a normal cost airlines from ATL.

ASSISTANT: As per the details, there is a connecting flight-1006 on UA airlines. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Ok, booking is done with your name.

USER: Thank you.

ASSISTANT: Welcome.