Hi.
user
Hello. How can I aid you?
assistant
My name is Brian Gonzalez. I want to reschedule my journey dates to go for a  trip. So, help me in changing the reservation.
user
Ok, please wait I will revert you in a  moment.
assistant
Sure, take your time.
user
 Sorry, no reservation was found on your name.
assistant
No worries at all. Thank you for your kind information.
user
Thank you for availing us.
assistant