Hi. I am Rachel Martinez.
user
Hello, how can I help you today?
assistant
I want to do some changes in existing reservation because I did not get concert tickets, so planning to travel on another date. Could you please help me with changing my existing reservation?
user
Sure, we are here to help you to change it. Please wait for a couple of minutes.
assistant
Sure.
user
Thanks for your time, we did not find any reservation on your specified name.
assistant
Ok, no worries at all. Thank you for your help.
user
Thank you for choosing our service.
assistant