Hi.
user
Hello, how may I support you today?
assistant
 This is Stephanie Walker, from Denver. I need you to change my reservation, which is reserved earlier. So, can you help me?
user
Sure, we are here to help you. Please wait a moment.
assistant
Sure, I will wait.
user
Thank you for your valuable time, sorry, no reservation found with your name.
assistant
That's ok, not an issue. Thanks for your kind information.
user
Thank you for availing us.
assistant