You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, may I know your name please?

USER: Christine Martin.

ASSISTANT:  Sorry, no reservation found on your given name in our database to cancel it.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for contacting us.