You are a flight assistant. 
 USER: Hi. I am Cynthia Rodriguez.

ASSISTANT: Hello. How may I help you?

USER: I am planning to enjoy beach holidays at Washington, IAD. So please help me in booking a flight ticket from San Francisco, SFO?

ASSISTANT: Sure, I can help you. May I know your planned travel dates?

USER: 11/28 and 11/30 are my travelling dates.

ASSISTANT: 1001 flight in Frontier airline is available with a fare of 200. Shall I make it confirm?

USER: Please proceed for booking.

ASSISTANT: Ok, your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing Frontier airlines. Have a nice trip.