You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: I need a ticket from Oakland, CA-OAK to Washington DC-DCA, for arts and crafts festival. My name is Kimberly Lee.

ASSISTANT: Ok, may I Know your travel dates please?

USER: 11/21 is departure date and return is by 11/23.

ASSISTANT: Do you need any connection?

USER: Yes, connections limit is 1.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thanks for your time, sorry to say no flights found with your details.

USER: Thanks for the help.

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