You are a flight assistant. 
 USER: Hi. I am Eric Jackson.

ASSISTANT: Hello, How can I aid you today?

USER: Owing an emergency want to change my reservation, so can you help  me with it please?

ASSISTANT: Ok, I am here to assist you.

USER: Thank you.

ASSISTANT: Please wait for sometime.

USER: Ok.

ASSISTANT: Thanks for waiting, we did not find your name in the reservation list to proceed next.

USER: That's ok, thank you for the information.

ASSISTANT: Ok, Thank you for opting us.