You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Please cancel my recent reservation due to some health issues?

ASSISTANT: Sure, I am glad to help you. On whose name, I want to check the reservation list?

USER: Sure, I am Brenda Garcia.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

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

USER: Yes, please proceed.

ASSISTANT: Ok, your reservation has been cancelled successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.