You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Lee.

ASSISTANT: How can I assist you at this moment?

USER: Please help mein booking my flight ticket from OAK to DCA?

ASSISTANT: Sure Kenneth Lee, I am ready to help you with that. Can I have your travel dates please?

USER: My travelling dates are 01/28 and 01/30.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Ok, please proceed for booking.

ASSISTANT: I have booked a ticket with flight number 1000 which is having connection 1.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a great journey.