You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Eric Rodriguez here.

ASSISTANT: Ok.

USER: I need to change my existing reservation due to some health issue, can you help me in doing that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, no active reservation was found on your name in the database.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for choosing us.