You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Amanda Johnson, I would like to cancel my recent reservation because of some personal work, can you help me?

ASSISTANT: Sure, I am here to help you with that. Please wait for a minute.

USER: Thank you, I will wait for your response.

ASSISTANT: Sorry to say that, there is no reservation found on your name in our database.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for reaching us.