You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to our ABC travelling agency. How may I assist you?

USER: I need to change my reservation which I have done earlier to reach Wander law but unfortunately it has closed due to heavy rains. Can you help me?

ASSISTANT: Sure, could you please mention your name for this process?

USER: My name is Raymond Gonzalez.

ASSISTANT: Raymond, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Raymond, there is no reservation found on your name to change your reservation.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for your assistance.