You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Can you help me to cancel the reservation I had done recently?

ASSISTANT: Sure, May I know your name?

USER: Ok, please can you check for the reservation which I had reserved on the name Carolyn Mitchell.

ASSISTANT: Please wait a second.

USER: Ok, I will wait.

ASSISTANT: Sorry, No reservation found on your name.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thank you for opting us.