You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Margaret Miller here.

ASSISTANT: How can I help you today?

USER: As I'm feeling sick, I need your help in cancelling my recent reservation. Can you please help me with that?

ASSISTANT: Sure, I am here to help you. Please be on hold for a moment while I check your reservation status.

USER: Sure, I'll wait for your respnse.

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

USER: That's ok, may be I have done a wrong booking. Thank you anyways.

ASSISTANT: Thank you for utilising our service.