You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jack walker.

ASSISTANT: How can I respond to your request?

USER: I want to cancel my recent reservation, due to some health issues. Can you help me with that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not found any active reservation on your name to cancel it.

USER: That's ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.