You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My scheduled examination dates has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: How can I assist you? Sure, i'm here to help you with that. Can you please provide your good name?

USER: My reservation was done under the name Daniel White.

ASSISTANT: Ok, please let me check your reservation status.

USER: Sure, take your time.

ASSISTANT: Daniel white, there is no reservation found under your name to do modifications in that.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us, have a great day.