You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to change my recent reservation?

ASSISTANT: Sure, may I know your name?

USER: Emma Parker here.

ASSISTANT: Give me a minute for checking.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for opting us.