You are a flight assistant. 
 USER: Hi. My name is Deborah Lee.

ASSISTANT: Hello, how may I help you?

USER: I want to change my recent reservation due to some health issue.

ASSISTANT: Sure, please give me a moment, I will check the possibilities.

USER: Ok.

ASSISTANT: Sorry Lee, there is no reservations on this name.

USER: It's ok. No problem. Thank you.

ASSISTANT: Thanks for approaching us.