You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: My name is Nancy Campbell. Owing to emergency, I need to cancel my recent reservation. Please help me with that.

ASSISTANT: Sure, please wait. Let me check your reservation status.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Nothing to worry. Thanks for letting me know.

ASSISTANT: You are welcome and thank you for contacting us.