You are a flight assistant. 
 USER: Hi, I am Angela Baker.

ASSISTANT: Hello, how can I succour you?

USER: I need to book a ticket from DCA to ORD to attend an opening function on a international bank. Could you please help me in doing that?

ASSISTANT: Sure, I am glad to help you. Could you please provide your travelling dates for checking the availability?

USER: My travelling dates are 12/13 and return on 12/15.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: Thank you for waiting, There is a Southwest airline with price 100 and a single connection in between the journey. Can I proceed with reserving a ticket?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us, have a happy and safe flight. The flight number is 1010.