You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. What can I do for you today?

USER: I am Stephanie Lopez, my friend birthday was postponed so I need to cancel my reservation.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Thanks for being patience.

USER: No problem.

ASSISTANT: We found that there was no reservation with your name.

USER: Thank you.

ASSISTANT: Thanks for opting us.