You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help do you require from our flight ticket booking agency?

USER: I want to cancel my recent reservation due to an health problem. Can you help me?

ASSISTANT: Sure, I can help you with the ticket cancellation process.

USER: Thank you.

ASSISTANT: On whose name you have booked the ticket?

USER: Sure, the previous reservation is done under the name Shirley Turner.

ASSISTANT: I am really happy to inform you that, I have found your ticket reservation in the chart list and successfully cancelled your ticket.

USER: Thank you for your valuable help.

ASSISTANT: You are most welcome. Thank you for reaching us.