You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: Can you help me in booking a flight ticket from SFO to LAS?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travel dates are Apr, 21 and Apr, 23.

ASSISTANT: Do you have any other specifications?

USER: I need to travel in economy class with connecting flight.

ASSISTANT: Please help me with your name for booking.

USER: Sarah Jackson here.

ASSISTANT: According to your information, I have found a direct flight in your journey with a minimum fare of 200 with flight number 1006. Shall I proceed with this flight?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Most welcome.