You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: I am Nicole Hall.

ASSISTANT: Glad to meet you Hall.

USER: I planning to change my reservation, can you help in that?

ASSISTANT: Sure, I am here to help you with that.

USER: Ok.

ASSISTANT: Please wait a moment and I will check for reservation status.

USER: Sure.

ASSISTANT: Sorry Hall, no reservation has found under your name to change.

USER: That's ok, might be my father has changed. Thank you for your help.

ASSISTANT: Most welcome. Thank you for choosing us, have a great day.