You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can help you today?

USER: I want to modify my recent ticket details, because my partner is not able to attend for the trip on this dates. So that, I decided to change the ticket details. Can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your name for further process?

USER: I am Kenneth Evans.

ASSISTANT: Ok, please hold on a moment, I will check your previous reservation status.

USER: Sure, take your time.

ASSISTANT: There is no previous reservation available in your name Kenneth Evans.

USER: It's ok, thank you for checking.

ASSISTANT: You are welcome.