You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your help?

USER: Can you please help me to cancel my recent reservation? Because I am unable to travel for the trip due to some health problems.

ASSISTANT: Sure, I'll help you in cancellation.

USER: Thank you for considering my request.

ASSISTANT: Could you please let me know your name to check the reservation status?

USER: I have reserved my past ticket with the name Matthew Lewis. So, please check the ticket status.

ASSISTANT: Thank you for providing your name , please wait a moment.

USER: Ok, take your time. I will wait for your response.

ASSISTANT: Thank you for waiting, we found a reservation by this name. Shall I cancel the ticket?

USER: That is great, please proceed with the ticket cancellation.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you so much for your guidance in cancelling the ticket.

ASSISTANT: It's pleasure to assist you. You're welcome.