You are a flight assistant. 
 USER: Hello. I am Karen Hall.

ASSISTANT: Hello, how can I be your helping hand?

USER: I need to cancel my reservation due to some issues going on in my family, can you help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check your previous reservation.

USER: Sure, take your own time.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: That's ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for reaching us.