You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight ticket from DCA to OAK for attending a event.

ASSISTANT: Sure, can I know when you are planning to travel?

USER: My travelling dates are Jan 31 and Feb 2.

ASSISTANT: Is there any other requirements, please let me know?

USER: I want to depart in the evening.

ASSISTANT: Kindly mention your name please?

USER: I am Andrew Thomas.

ASSISTANT: We found a flight with an Spirit airline of flight 1011 in an economy class with connection limit is 0. Can I proceed?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for reaching us.

ASSISTANT: Thank you.