You are a flight assistant. 
 USER: Hi, I am Brenda Parker.

ASSISTANT: Hello. How can I oblige you?

USER: I need a direct flight to attend for a meeting with my Manager at Oakland, CA - OAK.

ASSISTANT: Ok.

USER: Will you assist me to book a ticket on 04/16?

ASSISTANT: Sure, May I know your return date?

USER: My return date is 04/18.

ASSISTANT: Can you share your source point?

USER: Sure, my source point is DC - IAD.

ASSISTANT: Is there any price limit?

USER: Yes, my price limit is 1000.

ASSISTANT: We found a direct flight in 1001 flight number in DElta airline and price 100 with a connection. Can I make reservation?

USER: Sure.

ASSISTANT: Reservation is done.

USER: Ok, thanks for your assistance.

ASSISTANT: Thank you.