You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Due to relocation of my fashion show competition, so I need to change my existing reservation. Will you help me in this?

ASSISTANT: Sure, may I know your name for checking?

USER: Sure, I am Jacob Johnson.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: No worries, thanks for your effort.

ASSISTANT: Thank you for opting us.