You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Karen Hernandez, can I know if it is possible to cancel the reservation I did a week ago?

ASSISTANT: Sure, I am mirthful to help you to cancel your reservation.

USER: Ok, please take the time you need to check.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Here, I found your reservation and it is successfully cancelled.

USER: Thank you so much for the help.

ASSISTANT: Thank you for reaching us, have a nice day.