You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Matthew Robinson.

ASSISTANT: Matthew, how can I assist you?

USER: Owing an emergency, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, please give me a moment.

USER: Ok, I will be waiting.

ASSISTANT: Sorry, there is no active reservation on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us.