You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Linda Taylor. Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, please hold on for a moment, let me check.

USER: Ok, take your own time.

ASSISTANT: I am sorry Linda, there are no reservations with your name in our database. Thank you, have a great day ahead.

USER: That's ok. Anyways, thank you for your help.