You are a flight assistant. 
 USER: Hello,. I am Janet Wilson.

ASSISTANT: Hello, how can I help you today?

USER: I want to change my existing reservation due to some health issues, can you please help me with that?

ASSISTANT: Sure, we are here to help you. Wait for some time I will check the reservations on your name and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting there is no reservations found on your name.

USER: Ok, no worries at all. Thanks for your information.

ASSISTANT: Thanks for approaching us.