You are a flight assistant. 
 USER: Hi, Nicole Williams here.

ASSISTANT: Hello. How may I aid you?

USER: Please check, Is there any flights available to reach San Francisco from Washington, on 03/22?

ASSISTANT: Sure, I will help you with that. Kindly, mention your boarding point.

USER: DC - IAD, is my boarding point.

ASSISTANT: When will you return from San Francisco?

USER: I will return from San Francisco, on 03/24.

ASSISTANT: Please, share your landing airport code.

USER: CA - SFO, is my landing point.

ASSISTANT: Do you prefer a lay by in between your journey?

USER: Usually, I prefer a halt.

ASSISTANT: Thank you for sharing the details. I am glad to inform you that, there is a connecting flight available on your preferable dates with fare 100 in UA airline.

USER: I am happy with that flight, you may now proceed for booking.

ASSISTANT: Your reservation has been confirmed with flight number 1010.

USER:  Thanks for your helping hand.

ASSISTANT: Thank you for choosing us.