You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: Rachel Martin here.

ASSISTANT: Yes Martin.

USER: I want to cancel my reservation due to recent terrorist attacks in London, can you help me?

ASSISTANT: Sure, I glad to help you, please hold on for a moment to check your reservation status.

USER: Ok, please check my existing reservation status and let me know.

ASSISTANT: Martin, I did not find any active reservation with your name in my database.

USER: Oh! That's very sad news, maybe my husband had already canceled my ticket.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.