You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you?

USER: Owing to have an emergency, I want to cancel my reservation.

ASSISTANT: Ok.

USER: Can  you help me in this with the name of Christine Evans?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we have not found any reservation on your name.

USER: No problem. Thank you for your assistance.

ASSISTANT: Thank you.