You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Stephen Adams.

ASSISTANT: Ok.

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

ASSISTANT: Sure, please hold on for a moment.

USER: Sure.

ASSISTANT: I found your reservation and cancelled it.

USER: Thank you for your help.