You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Timothy martin. Can you cancel my recent reservation?

ASSISTANT: I can help you with that Martin.

USER: Thank you.

ASSISTANT: I have found your reservation, if you want to cancel reservation half of the amount will be refund to you.

USER: It's ok, not an issue for me. Please cancel it.

ASSISTANT: I have cancelled your reservation.

USER: Thank you for your help.

ASSISTANT: You are welcome.