You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please assist me to cancel my reservation?

ASSISTANT: Sure, please wait. Let me check your reservation status in our database. Please help me with your name.

USER: My name is John Mitchell.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Ok, not a problem. Thank you.

ASSISTANT: You are welcome and thank you for choosing us.