Hello.
user
Hello, how can I render you today?
assistant
I am Ryan Carter. Owing to an emergency, I want to change my existing reservation. Could you please help me in changing the reservation?
user
Sure, I will help you. Please hold on.
assistant
Sure.
user
Thanks for your precious time. There is no active reservation found  on your name.
assistant
Not an issue. Thank you.
user
Thank you for reaching us.
assistant