You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: My name is Patricia Adams, I want to change my reservation. Can you help me?

ASSISTANT: Sure Adams, please be on hold.

USER: Ok, sure.

ASSISTANT: There is no reservation found under your name to do changes in that.

USER: No problem, thank you so much.

ASSISTANT: Thank you for choosing us.