You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Amy Hall.

ASSISTANT: How may I assist you today?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me in this?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, I could not find any reservation with your name in our database.

USER: Not a problem, thank you.

ASSISTANT: My pleasure.