You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have to cancel my previous flight ticket booking due to some health problems, can you please help me with that one?

ASSISTANT: Sure, please share me your good name.

USER: Thank you and my name is Melissa Scott.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a reservation found with the given name. It has been cancelled successfully.

USER: Ok, no problem with that one. Thank you for your help.

ASSISTANT: Thank you.

USER: Welcome.