You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be in your service?

USER: I want to change my existing reservation, due to inconvenience of dates on my journey. Can you please help me with that cancellation?

ASSISTANT: May I know your previous name on which the ticket is been booked?

USER: Sure, Myself Michelle King.

ASSISTANT: Ok, thank you for providing the details. Sorry, there is no reservation been found in our records on your name.

USER: That's ok, no problem.

ASSISTANT: Thank you for connecting our agency.

USER: Thank you for searching.