You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I need to change my current reservation due to urgent meeting, can you help me?

ASSISTANT:  Yes, I am here to help you. May I know your name please?

USER: I am Laura Adams.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Thank you for your time, sorry no reservation found on your name.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.