You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Amanda Baker here.

ASSISTANT: Amanda, how may I help you?

USER: I would like to attend a seminar in Washington, can you please reserve a flight ticket from ATL to DCA?

ASSISTANT: Please provide your itinerary dates.

USER: Ok, I am planning to departure on 06/03 and please book my return ticket also on 06/05.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Sorry, no flight is available on your route.

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us.