You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Nancy Campbell here. Owing to an emergency I have request you to cancel my reservation. Can you please help me out that?

ASSISTANT: Nancy Campbell, I am here to help you for this. Let me check your reservation status in our records.

USER: Thank you, take your time.

ASSISTANT: Sorry for inconvenience, no reservation is found with your criteria.

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

ASSISTANT: Thank you very much for approaching our agency.