You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

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

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: Myself Susan Thompson.

ASSISTANT: Please allow me a moment.

USER: Ok.

ASSISTANT: Susan, there is no reservation found under your name.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for contacting us.