You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Because of some health issues, can you please cancel my reservation which has been done recently, can you please help me in this condition?

ASSISTANT: Please tell me your good name to proceed further.

USER: Sure, my name is Alexander Garcia.

ASSISTANT: Please wait for a while. Sorry Garcia, no reservation found.

USER: That's ok, thank your appreciable service.

ASSISTANT: Welcome, have a nice day.