Hi.
Hello.
I am Carolyn Turner.
How may I render you at this moment?
I need to change my reservation as my plan to go for an adventure trip got postponed. Can you help me?
Sure, I am here to help you. Please wait for few minutes.
Sure.
We found a active reservation on your name. could you please provide your new travelling details?
I need to reach IAH from MSP on July 15th and will return on 17th.
Ok, let me check with the availability of flights.
Sure, take your own time.
Sorry to inform you that there  are no flights found on your requested dates.
That's fine, thanks for your assistance.
Thank you for reaching us.