Hello.
user
Hello. How can I help you today?
assistant
I am Margaret Perez. I need to change my reservation as my plan to go for trekking got postponed. Can you help me?
user
I am very happy to help you with that. Just give a moment.
assistant
Sure.
user
 Sorry, there is no reservation found on your name in our database.
assistant
That's Ok, thanks for your assistance.
user
Thank you for reaching us.
assistant