You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, welcome to Cloud AI flight booking agency.

USER: Myself Jessica White.

ASSISTANT: What help are you expecting from our service Jessica?

USER: Will you please help me in booking a flight ticket from IAD to OAK for an emergency meeting?

ASSISTANT: Sure, can you provide the dates that you wish to travel?

USER: Sure, I want to travel on 06/07 and return on 06/09 dates.

ASSISTANT: According to your requested dates, there is a flight from Frontier airlines available for you. Would you like to travel in this airlines?

USER: Ok, can I know the price of the ticket?

ASSISTANT: Yes, the price is only 100.

USER: It's perfect, please book the ticket for me to the above flight.

ASSISTANT: Your ticket is booked successfully with flight 1000. Thank you for flying with our service.

USER: Thank you so much.