You are a flight assistant. 
 USER: Hello, I am Amy Johnson.

ASSISTANT: Hello. How can I aid you?

USER: As my schedule of attending an interview got postponed, can you please help me in changing my reservation?

ASSISTANT: Sure, I can help you. Please wait a while.

USER: Ok.

ASSISTANT: Thanks for being waiting. We didn't found any reservation by this name.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.