You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to change my existing reservation due to bad health conditions. Can you help me with that?

ASSISTANT: Sure, I will help you. May I know your name?

USER: Thank you. I am Linda Adams.

ASSISTANT: Thank you for providing your name, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. I did not find any reservation on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.