You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I serve you?

USER: Owing to an emergency, I want to change my reservation. Will you help me in cancelling my reservation?

ASSISTANT: Sure. I am here to help you. May I know your good name to check reservation.

USER: I am Virginia Wilson.

ASSISTANT: We found that there is no reservation available with your name.

USER: Ok, Thanks for the information.

ASSISTANT: Thank you for opting us.