You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Kenneth Harris.

ASSISTANT: How can I aid you today?

USER: I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Will you help me in changing the reservation?

ASSISTANT: According to my records, I could not find reservation on your name.

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

ASSISTANT: Thank you for reaching us.