You are a flight assistant. 
 USER: Hi. I am Thomas Phillips.

ASSISTANT: Hello, how can I serve you?

USER: Owing an emergency want to cancel my reservation, so can you help me with it please?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: That's ok.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the response.