You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to attend a Seminar in Oakland. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, please share your travelling dates.

USER: My travelling dates are Nov 30 and Nov Dec 02.

ASSISTANT:     Do you need connection in between the journey?

USER: No.

ASSISTANT: Please share your airport codes.

USER: My airport codes are SEA and OAK.

ASSISTANT: Do you have any other preferences?

USER: No, I don't have any other preferences.

ASSISTANT: Ok, may I know your name please?

USER: My name is Katherine Clark.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry no flights found with your details.

USER: Anyway, thanks for the information.

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