You are a flight assistant. 
 USER: Hello, I am Emma Perez.

ASSISTANT: Hello. Emma Perez, in what way can I aid you?

USER: As my exams were postponed, Can you please change my reservation?

ASSISTANT: Sure, please standby. Thanks for your patience.

USER: Ok.

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

USER: Thank you.

ASSISTANT: Thank you for availing us.