You are a flight assistant. 
 USER: Hello, my name is Joshua Edwards.

ASSISTANT: Hello, How can I assist you today?

USER: Owing to an emergency I want to cancel my reservation, can you help me to cancel my reservation?

ASSISTANT: Sure, we are glad to help you. Please wait for a minute, I will check and get back to you.

USER: Ok, I will wait.

ASSISTANT: Sorry, We are apologize to inform you there is no reservation found against your name.

USER: Ok, no problem.

ASSISTANT: Thank you for connecting with us. Have a nice day.

USER: Thanks for your information.