You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I got a call from my parents that one of my relative is admitted in the hospital, so I need to change my travel dates to go to my hometown. Can you please help me in changing the details?

ASSISTANT: Sure, I am here to help you out. Please provide me your name to check any active reservation is there or not.

USER: Sure, I am Brain Moore.

ASSISTANT: Sorry Moore, there is no active reservation on your name in our database.

USER: That's fine, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.