You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Owing to emergency, I need to cancel my recent reservation. Please help me with that.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Let me know your name please.

USER: My name is Christine Jones.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Thank you for your time, there is no reservation found on your name to cancel.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for approaching us.