You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Gary King here.

ASSISTANT: How can I guide you at this moment?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I will help you with this. Please give me a moment to check your reservation status.

USER: Sure, take your time.

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

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for utilising our service.