You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I provide assistance for you?

USER: I am Brandon Harris, in my previous reservation I gave wrong airport codes, so can you help me for changing my existing reservation?

ASSISTANT: Sure, I am glad to help you. Please wait a moment I will check your reservation status.

USER: Ok, I will wait for your reply but get back with my reservation status.

ASSISTANT: Thank you for waiting, I found a reservation on your name. Could you please provide your new airport codes?

USER: My nearest airport codes are DFW to JFK.

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are 08/06 and 08/08.

ASSISTANT: Ok, I found a direct flight flight for your details. Is it ok for you?

USER: Provide flight with connection 1.

ASSISTANT: Sorry to say, there were no connected flights on your routes.

USER: Oh! That's really sad to me, anyway thank you for your services.

ASSISTANT: Thank you for contacting us, have a nice day.