You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to change my reservation due to some health issues, so please help me in changing.

ASSISTANT: Sure, we are here to help you. On whose name, the reservation has been made?

USER: Please check the reservation on the name of Paul Jones.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing us.