You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to change my reservation, can you help me with that?

ASSISTANT: Sure, may I know your name to check with the status?

USER: My name is Emily Adams.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Emily Adams sorry, no reservation found in our database.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.