You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you book a direct flight to Washington?

ASSISTANT: Sure, can I have your travelling dates please?

USER: My travel dates are 05/08 and 05/10.

ASSISTANT: Ok, may I know your origin and destination codes please?

USER: My airport codes are from JFK to DCA.

ASSISTANT: Ok, wait for a minute.

USER: Ok.

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

USER: Yes, please.

ASSISTANT: Ok, can I have your name please?

USER: Myself Janet Clark.

ASSISTANT: Yes Clark, your ticket reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us.