You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me with changing my recent reservation?

ASSISTANT: Sure. May I know your name please?

USER: My name is John Rodriguez.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry I have not found your flight reservation to change it.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thank you.