You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Jason Hall.

ASSISTANT: How can I help you?

USER: I would like to attend workshop in Oakland, can you please make a reservation from DCA to OAK?

ASSISTANT: Sure, may I know your travelling dates please?

USER: My journey dates are, depart on Dec 28th and arrival on Dec 30th.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a halt in between journey.

ASSISTANT: Please share if you have other preferences.

USER: I don't have any other preferences.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight with number 1001 and airline Delta at a price of 100 with 1 connection. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Sure, your booking is done.

USER: Thanks for your service.

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