You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for the day?

USER: My Interview was pre-planned at the last minute, will you please help me to change it as soon as possible?

ASSISTANT: Sure, may I know your name please?

USER: My name is Richard Thompson.

ASSISTANT: Wait a moment, Kindly.

USER: Ok.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name to make changes.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.