Hello,.
Hello, How may I help you today?
Please help me in changing my existing reservation.
Sure, Please provide me your reservation details.
OK, My name is Betty Allen.
To proceed further, Please provide your source and destination details?
The source airport : MA-BOS, Destination airport : GA-ATL.
Thank you for providing your details, Please be online I will check and revert back to you.
Journey dates  from : July/01 and to July/03.
Thank you for being online. As per your requested details, we cannot provide you the flight on specified dates.