You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Daniel Nelson.

ASSISTANT: May I know your concern of approaching our agency?

USER: I want to cancel my recent reservation, due to ill health. Can you please help me?

ASSISTANT: Sure, I am here to help you in cancelling your reservation. Please give me a moment to check your reservation status.

USER: Sure, I will wait for response.

ASSISTANT: Daniel Nelson, there is no active reservation found under your name in our database.

USER: That's ok, no problem. Thank you for checking.

ASSISTANT: Thank you for utilising our service.