Hello, Benjamin Evans here.
user
Hello, how can I help you today?
assistant
Due to some changes in my booking, I want to change my existing reservation. Will you please help me?
user
Ok, give me a moment.
assistant
Sure.
user
Sorry, I didn't found any reservation basis on your details.
assistant
Fine, It's ok. Thank you for your help.
user
Thank you for reaching us.
assistant
You are welcome.
user