You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for today?

USER: Due to some health issues, I am unable to travel the trip which I have planned, can you please cancel my recent booking?

ASSISTANT: Yes, I can do that for you.

USER: Thank you.

ASSISTANT: Could you tell me your name for checking your previous reservation?

USER: Yes, my name is Barbara Evans.

ASSISTANT: Hold on for a second.

USER: Sure.

ASSISTANT: Your recent reservation has been cancelled successfully.

USER: Thank you so much for your immediate response in my ticket cancellation.

ASSISTANT: Thank you for reaching our agency.

USER: Most welcome.