You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I need to amend an existing reservation due to an emergency, can you please help me?

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Anthony Evans here.

ASSISTANT: Wait a while ,kindly.

USER: Sure, I will wait.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name to make changes further.

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

ASSISTANT: Thank you for reaching us.