You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Can you please tell me how may I help you?

USER: I need to cancel my reservation as I am suffering with fever. can you help me about that?

ASSISTANT: Sure, I will help you with that. Can you please tell me your name to check the ticket status?

USER: Thank you for considering my request. My name is David Hall.

ASSISTANT: Please give me a couple of seconds, I will check the ticket status and revert back to you.

USER: Sure.

ASSISTANT: I regret to inform you, there is no reservation found on your name to cancel.

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: You are welcome. Thank you for choosing us.