You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Myself Anna Smith. I want to cancel my reservation due to some health issues. Can you please help me out?

ASSISTANT: Ok, please wait till I check with your previous booking.

USER: Ok, take your own time.

ASSISTANT: I'm so sorry to tell you, there is no reservation found by your name.

USER: It's ok no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for helping me.