You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Melisa Nelson and I want to cancel my reservation owing an emergency.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, There was no reservation found on your name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thanks for choosing us.