You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amy Johnson.

ASSISTANT: Amy, how can I help you today?

USER: I want to attend an event in San Francisco. Can you help me to book a ticket from IAD to SFO?

ASSISTANT: Sure, I will help you with booking, please share your travelling dates?

USER: I want to travel on 07/21 and 07/23.

ASSISTANT: Spirit airline is providing flight with connection 1. Can I proceed to booking?

USER: Proceed to booking.

ASSISTANT: Your ticket is confirmed by flight number 1016.