You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me in booking my flight ticket from DCA to SFO?

ASSISTANT: Sure, when do you want to start and return on?

USER: My planned travel dates are Feb 21-23.

ASSISTANT: Do you need a connecting flight?

USER: I prefer to fly in connected flight.

ASSISTANT: Do you have any other specifications?

USER: No more specifications.

ASSISTANT: Can I know your good name?

USER: Myself, Gregory Mitchell.

ASSISTANT: Thank you for your details, we found a connecting flight 1010 in class economy which is in Spirit airline. Shall I proceed?

USER: Ok, please go ahead.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you.