You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I need you to change my recent booking. Please help me.

ASSISTANT: Sure, I will help you with that. Can you please mention your name for further process?

USER: My name is Kathleen Harris.

ASSISTANT: Ok, please hold on a moment.

USER: Sure, I will wait.

ASSISTANT: There is no previous reservation available under your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.