You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you at this moment?

USER: I want to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, may I know your good name please?

USER: My name is Christopher Martinez.

ASSISTANT: There is no recent reservation found on your name in our records.

USER: Thank you.

ASSISTANT: Thank you for reaching us.