You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Unfortunately, I would like to cancel my recently done reservation, can you please help me in this condition?

ASSISTANT: Sure, I am glad to help you. Could you please provide your name?

USER: Ok, my name is William Lopez.

ASSISTANT: Ok, please wait a moment I will check your complete details and proceed further.

USER: Ok, take your time.

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

USER: Ok, cancel it.

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

USER: Thank you for your service.