You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Due to unfortunate reasons I need to cancel my reservation. Please help me.

ASSISTANT: Sure, may I know your name?

USER: Thank you. My name is Jason Parker.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: I found your reservation and cancelled it.

USER: Great! I am very thankful to you.

ASSISTANT: Thank you for choosing us Jason Parker.