You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I amend you?

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name for the cancellation process?

USER: I am Sharon Walker.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thank you for your time, we did not find any reservation in your name.

USER: Ok, not a problem. Thanks for your prompt response.

ASSISTANT: Thank you for opting our service.