Hi.
user
Hello, how may I aid you?
assistant
I would like to change my existing reservation. Can you help me in this?
user
Sure, may I know your name?
assistant
Patricia Jackson here.
user
Please give me a moment to check your ticket status.
assistant
Ok.
user
Sorry Patricia Jackson, no reservation is available by your name.
assistant
Not a problem, thank you.
user
Thank you for reaching us.
assistant