You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Elizabeth Green. I want to cancel my flight ticket due to some problems I am unable to travel so can you please cancel my flight ticket?

ASSISTANT: Sure, we are here to help you.

USER: Thank you for your positive response.

ASSISTANT: Wait for a moment I will check the availability of reservations on your name and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: Ok, I think my previous reservation has not been booked properly at that time. Thank you for your information.

ASSISTANT: Thanks for approaching us.