You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicole Perez.

ASSISTANT: How may I assist you?

USER: Can you help me in changing my recent reservation?

ASSISTANT: Sure, please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for approaching us.