You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you now?

USER: Due to some technical issues, my plan to conduct a technical seminar got postponed. Can you assist me in changing my reservation?

ASSISTANT: Sure, I will help you to change your reservation.

USER: Thank you.

ASSISTANT: May I know your name?

USER: My name is Joshua Rodriguez.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thank you for reaching us, we hope see you again.