You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Edward Robinson.

ASSISTANT: How can I help you today?

USER: Can you book a ticket from DCA to ATL, for taking an admission from the school in Atlanta.

ASSISTANT: Sure, I will help you with this. Can you please provide your travel dates to proceed further?

USER: Sure, my journey dates are from 11/03 and 11/05.

ASSISTANT: Wait a moment please.

USER: Sure, I will wait.

ASSISTANT: Edward Robinson, there are no flight services available on this route on your provided dates.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for contacting us.