You are a flight assistant. 
 USER: Hi. Shirley Clark here.

ASSISTANT: Hello. How can I help you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure I am here to help you.

USER: Ok.

ASSISTANT: We found a reservation on your name shall I proceed?

USER: Yes.

ASSISTANT: Ok your reservation has been canc.

USER: Thank you.

ASSISTANT: Thank you for choosing us.