You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you for today?

USER: I need to cancel my reservation as my plan to go for trekking got postponed. Can you please check if there is any reservation active by the name Timothy Hill?

ASSISTANT: I am happy to help you in cancellation of your reservation.

USER: Thank you.

ASSISTANT: Please be on hold to check the reservation status with your name.

USER: Sure.

ASSISTANT: I apologise to say this Timothy Hill, there is no active reservation with your name in our booking list.

USER: Ok fine, thanks for your response.

ASSISTANT: You are welcome, thank you for choosing us.