Hi, I am Jack King.
user
Hello, how can I help you today?
assistant
Owing to an emergency, my planned trip to Yosemite adventure got postponed. So I want you to change my existing reservation.
user
Sure, please wait for a while.
assistant
Sure.
user
Thanks for waiting, there is no active reservation on your given name.
assistant
Ok, not an issue. Thank you for your assistance.
user
Thank you for opting us.
assistant