You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I be of your assistance?

USER: I am Emma Mitchell, i want to cancel my ticket as my plan to visit my sister has been cancelled.

ASSISTANT: Sure, please wait for a minute I will revert you with the present status.

USER: Sure.

ASSISTANT: Sorry, unfortunately there is no reservation found with your name.

USER: Thanks for the information.

ASSISTANT: Thank you for reaching us.