You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Susan Collins here. I would like to cancel my reservation today due to my son's health issues, can you help me?

ASSISTANT: Sure, I will help you in cancelling, can you please hold on for a moment to check your reservation status.

USER: Sure.

ASSISTANT: Collins, there is no any active reservation with your name in my database.

USER: Oh! That's sad news for me, thank you for checking anyways.

ASSISTANT: It's my pleasure.

USER: You are most welcome.