You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In what way, may I aid you now?

USER: I am Jacob Baker. As my schedule of going to conference got postponed, can you help me in changing my reservation?

ASSISTANT: Sure, I will. Please stand by.

USER: Ok.

ASSISTANT: Sorry, there was no reservation with your name.

USER: Ok, no issues.

ASSISTANT: Thank you for opting us.

USER: Thank you for information.