You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide service to you?

USER: I need to alter my recent reservation, can you please help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you for kind reply.

ASSISTANT: Can you please provide your name?

USER: Myself Benjamin Hall.

ASSISTANT: Please give me a minute to check the reservation status.

USER: Sure, I will be waiting.

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

USER: That's ok thank you for your information.

ASSISTANT: Thank you for contacting us.