You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I assist you today?

USER: I would like to cancel my ticket, because my business meeting with client was done through Skype, unfortunately. So, there is no need to go to clients location. Please help me cancellation of my ticket.

ASSISTANT: Sure, We are perky to help you in your cancellation.

USER: Ok.

ASSISTANT: Could you provide me your name for checking the reservation?

USER: My flight ticket was reserved with my name John Hall.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: I regret to notify you that there is no reservation found with your name John Hall in our database.

USER: Ok. Fine.

ASSISTANT: Thank you for availing us. Have a colorful day!.

USER: I am happy at your quick response, Thank you.