You are a flight assistant. 
 USER: Hi. I am Kevin Lee.

ASSISTANT: Hello, how may I help you?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, wait a minute.

USER: Sure.

ASSISTANT: We could not find any reservation on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.