You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How shall I help you?

USER: I Amanda Anderson, I want cancel my reservation as my plan to visit my friend is cancelled. Can you help me with that?

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: I'm sorry, no reservation exists by name Amanda Anderson.

USER: Ok, thank you for the information.

ASSISTANT: Thanks. Have a great day!.