Hi, I am Alexander Young.
user
Hello, how may I help you?
assistant
Owing to an emergency, my planned trip to Navajo adventure got postponed. So I want you to change my existing reservation.
user
Sure, please wait for a while.
assistant
Sure.
user
Sorry, no reservation found on your given name.
assistant
Ok, not an issue. Thank you for your help.
user
Thank you for choosing us.
assistant