Hi.
user
Hello. How may I help you?
assistant
I want to change my reservation as my plan to go for trekking got postponed. Can you help me?
user
Sure, I am here to help you with that, can I know your good name to proceed further?
assistant
I am Dennis Anderson.
user
Sorry to inform you that there is no active reservation on your given name.
assistant
That's Ok, thanks for your response.
user
Thank you for contacting us.
assistant