You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: Thomas Walker here.

ASSISTANT: What kind of service are you expecting from us?

USER: Can you please help me out in cancelling my recent reservation? As my health is not in a good condition to do journeys.

ASSISTANT: Sorry for the inconvenience, I will help you with that. Please wait for a couple of minutes.

USER: Sure, I'll wait.

ASSISTANT: Thanks for your time. Sorry, there is no active reservation found on your name to cancel it.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thanks for opting us.

USER: Welcome.