You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Emma Hall. Due to some health issue I want to cancel my recent reservation. Can you help me in that?

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT:  Sorry, there is no reservation matching with your name in our portal.

USER: Ok, not a problem. Thank you for checking.

ASSISTANT: Thank you for reaching us.