You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Edward Thomas. Owing to an emergency, I want to cancel my recent reservation.

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: We could not found a reservation on your name in our reservation list.

USER: No problem, thank you for your help.

ASSISTANT: Thank you for reaching us.