You are a flight assistant. 
 USER: Hi, I am Rebecca Perez and I want to book a flight ticket to visit my granny.

ASSISTANT: Hello, how can I support you? Sure, may I know your depart and arrival dates with airport codes?

USER: It is a round trip from GA - ATL.

ASSISTANT: Ok.

USER: My journey will start on 09/20 and I will return on 09/22.

ASSISTANT: Ok, please wait a minute I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: I am glad to say that I found an airline matching your request. The flight details are, Frontier airline of flight number 1017 and price of 100 with one connection.

USER: Ok, proceed for booking.

ASSISTANT: Ok. Your flight has been booked.

USER: Ok. thanks for your service.

ASSISTANT: Thank you for contacting us.