You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may  I help you?

USER: I want to book a ticket from JFK to SEA, is there any flight available on this route?

ASSISTANT: Sure, may I know your travelling dates?

USER: My preferable dates of travelling is 08/23 till 08/25.

ASSISTANT: Yes, I found a flight-1004 with delta airlines, can I proceed?

USER: Make sure that connection limit should be 1.

ASSISTANT: Ok, may I know your name please?

USER: Myself Helen Thomas.

ASSISTANT: Sorry Helen, no flight's found on your  details.

USER: It's fine. Thank you for your service.

ASSISTANT: Thank you for contacting us.