Hello, myself Donna Nelson.
user
Hello, how may I aid you today?
assistant
Can you help me to change my travel dates to my planned dates as the program which I have planned has been postponed. Can you help me with that please?
user
Sure Nelson, I am here to help you in amending the reservation. Can  you provide me your name? Please I need confirm your name.
assistant
I have mentioned above please check.
user
Here I didn't find any active reservation on your name.
assistant
That's ok, thank you assisting me.
user
Thank you for reaching us.
assistant