You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name please?

USER: Andrew Mitchell here.

ASSISTANT: What can I do for you?

USER: I want to book a ticket from SFO to SFO for my foot ball match.

ASSISTANT: Ok, please provide the departure and arrival dates?

USER: My preferable dates are from 07/23 to 07/25.

ASSISTANT: I found a flight on your requested dates. Shall I book the ticket?

USER: Please proceed.

ASSISTANT: Your ticket is booked with UA airlines and the flight number is 1012. Have a safe journey.

USER: Thank you for your assistance.

ASSISTANT: Welcome.