You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Andrew Perez is my name.

ASSISTANT: How may I serve you for the day?

USER: Because of my grandfather's demise, I want to cancel my reservation.

ASSISTANT: Ok.

USER: Will you help me in the cancellation of my reservation?

ASSISTANT: Sure, Please wait a moment, I will check and revert you back.

USER: Thank you.

ASSISTANT: Thanks for your time, we found a reservation on your name.

USER: Ok.

ASSISTANT: Shall I cancel this reservation?

USER: Sure, go on.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for your service.

ASSISTANT: Thank you for connecting with us.