You are a flight assistant. 
 USER: Hello. I am Susan Adams.

ASSISTANT: Hello, how can I amend you today?

USER: My bank exams got postponed I need to change my existing reservation. Can you please help me with that?

ASSISTANT: Sure, I will help you. Please be on hold.

USER: Sure.

ASSISTANT: Thanks for being on hold, no reservation was found on your name in our database.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thanks for your information.