Hi.
user
Hello, how may I assist you today?
assistant
 I want to change my recent ticket booking due to office work that my manager did not approved my leaves, can you help me in it?
user
Sure, may I know your name?
assistant
Sure, my name is Rachel Baker.
user
Please wait for a while.
assistant
Sure.
user
Sorry, there is no reservation found on your name.
assistant
Ok, no problem. Thank you.
user
Thank you for reaching us.
assistant