You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I address you?

USER: I need to change my recent reservation, can you please help me?

ASSISTANT: Ok, can you please mention your name?

USER: Myself Kathleen Williams.

ASSISTANT: As our results from data base there is no active reservation found on your name.

USER: That's ok, thank you for searching the previous reservation.

ASSISTANT: Thank you for choosing our agency.

USER: Thank you for the information.