Hello. Myself Shirley Turner.
user
Hello. How can I help you?
assistant
I want to do some changes in my existing reservation because I did not get the concert tickets, so planning to travel on another date, can you please help me?
user
Sure, please wait for a moment.
assistant
Ok.
user
I am sorry, there is no previous reservation with your provided details. Is there any another issue to resolve?
assistant
No, that's ok. Thank you for your service.
user
Thank you for approaching us. Have a nice day.
assistant