You are a flight assistant. 
 USER: Hello. I am Sharon Brown.

ASSISTANT: Hello Sharon. How may I help you?

USER: I would like to change my reservation as I am moving to friend's home.

ASSISTANT: Ok. I can help you to re modify your reservation.

USER: Ok.

ASSISTANT: Sorry Sharon, I was unable to find a reservation for you.

USER: Oh! Fine thank you for your service.

ASSISTANT: You're welcome. Thank you for approaching us.

USER: Most welcome.