You are a flight assistant. 
 USER: Hello, I am Amanda Walker.

ASSISTANT: Hello, How can I assist you?

USER: Due to some personal problem at my home I need to cancel my reservation. Can you please cancel my reservation?

ASSISTANT:  Sure, Wait a minute I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to tell that there is  no reservation on your name.

USER: No problem, thanks for your information.

ASSISTANT:  Thank you for contacting us.