You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Emma Roberts. For some personal issues I want to change my reservation, can you please help me?

ASSISTANT: Sure Emma, let me check your details. Sorry to inform you that there is no reservation found under your name.

USER: It's ok.

ASSISTANT: Do you want any other reservation?

USER: Thank you for the information.

ASSISTANT: You are welcome. Thank you for reaching us.