You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Can you help me to change my recent reservation because my trip dates are postponed, can you help me?

ASSISTANT: Sure, I am here to help you out. Please provide me your name to check whether any active reservation is found on your name or not.

USER: I am Ruth Hernandez.

ASSISTANT: Ruth Hernandez, please allow me a moment.

USER: Sure, take your own time.

ASSISTANT: Ruth Hernandez, there is no active reservation on your name in our database.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for reaching us.