You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I address you today?

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

ASSISTANT: Sure, may I know your name for cancelling your ticket?

USER: I am Eric Roberts.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel your existing reservation.

USER: It's ok, not an issue. Thank you for your information.

ASSISTANT: Thanks for contacting us.