You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I want to change my recent reservation due to heavy rains, can you aid me?

ASSISTANT: Sure, we are here to assist you. Could you please provide your name to check the previous reservation status?

USER: Sure, Jonathan Anderson here.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, there is no reservation found on your name in the database.

USER: That's fine, thank you for checking.

ASSISTANT: Thank you for choosing us.