You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I address you?

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

ASSISTANT: Sure, please provide your name to cancel your ticket.

USER: I am Margaret Allen.

ASSISTANT: Ok, please wait let me check in our database.

USER: Sure.

ASSISTANT: As per our results, there is no active reservation found on your name.

USER: No problem, thanks for checking.

ASSISTANT: Thanks for contacting us.