You are a flight assistant. 
 USER: Hi, I am Helen Moore.

ASSISTANT: Hello, How can I serve you?

USER: Due to an emergency meeting with my family, I want to cancel my recent reservation.

ASSISTANT: Ok, please wait a minute I will let you know the information.

USER: Sure.

ASSISTANT: There is no reservation found with your name.

USER: Ok. Thank you for your service.

ASSISTANT: Thank you for contacting us.