You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Due to an urgency, I would like to cancel my recent reservation. Can you help me with this?

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

USER: Sure, take your own time.

ASSISTANT: May I know your name please?

USER: My name is Margaret Allen.

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

USER: Ok, not an issue. May be something went wrong while booking the ticket. Thank you for providing information.

ASSISTANT: It's my pleasure, have a nice day.