You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: As my plans to visit Washington got postponed, can you please help me in changing my existing reservation to Washington?

ASSISTANT:    Sure, I am here to help you.

USER: Thank you.

ASSISTANT: I have to know some basic information like name from your side, can you please share it?

USER: Sure. My previous reservation has done with the name of Alexander Rodriguez.

ASSISTANT: Ok, please wait a minute.

USER: Sure, I will wait for your information.

ASSISTANT: Thank you for waiting, sorry to inform no reservation found on your name.

USER: Ok, not an issue. Thank you for your time.

ASSISTANT: Thank you for reaching us, have a good day.