You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking for agency help in my ticket modification that my leaves are not approved from my office management, is there any one can assist me to change my previous booking?

ASSISTANT: Please share your name?

USER: Sure, my name is Karen Anderson.

ASSISTANT: Please wait a while. There is no reservation on your name in our database.

USER: Ok, it's fine, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.