You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: I am Michelle Evans.

ASSISTANT: Nice to meet you Michelle Evans.

USER: I just want to change my recent reservation because my business trip postponed, can you help me for that? Nice to meet you too.

ASSISTANT: Sure, please wait a moment, I will inform you.

USER: Sure, please take your own time.

ASSISTANT: No reservation found on your name Michelle Evans.

USER: It's ok, no issues.

ASSISTANT: Thank you for contacting us.

USER: Thanks for helping me.