You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my reservation as I am not able to make my trip. Can you help me with that?

ASSISTANT: Yes, can you share me your name?

USER: Sure, my name is Karen Campbell.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for contacting us.