You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to change my recent reservation. Can you help me?

ASSISTANT: Sure, please provide me your name.

USER: My name is Sarah Baker.

ASSISTANT: Sorry Sarah Baker, we haven't found any reservation based on your name.

USER: No issue, thank you for the information.

ASSISTANT: Thanks for reaching us.