You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Virginia Perez. I am planning to attend a seminar.Can you please help in booking a ticket?

ASSISTANT: Ok, provide the airport codes that your are travelling.

USER: My airport codes are from CA-SFO to PA-PHL.

ASSISTANT: Which dates that you are preferring Virginia.

USER: My trip dates are from 11/21 to 11/23.

ASSISTANT: As per your dates there is a flight 1009 with 100 fare, can I continue to book your ticket?

USER: Ok, please book my ticket.

ASSISTANT: Virginia Perez, your booking is done, happy journey.

USER: Thank you.

ASSISTANT: You are welcome.