You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I would like to book a ticket from DCA to SFO, can you please help me out?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: I am travelling on these dates Sept 9th and 11th.

ASSISTANT: Ok, could I have your name please?

USER: Stephanie Carter here.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need single connected flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I prefer departure in the evening.

ASSISTANT: The economy class with flight number 1016 of Delta airline is available having fare as 100 and connection as 1, is it ok for you?

USER: Ok, you can proceed.

ASSISTANT: Ok, your reservation is confirmed. The departure time is 12:00 hours and the arrival time is 15:00 hours.

USER: Thank you for your services.