You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald White.

ASSISTANT: How can I assist you with that?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Please wait for a moment while I check.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, sorry as per the records your reservation is not found to proceed.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing our agency.

USER: You are welcome.