You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. What kind of service you are expecting from us?

USER: My name is Jason Smith. I would like to book a flight on 05/11. Can you please book a flight ticket for me?

ASSISTANT: Sure, I can book a ticket for you. Could you please provide your dates of travel?

USER: I will return on 05/13. My airport abbreviates are SFO - LAX.

ASSISTANT: We found a flight from UA airline with a price of 400 available for you.

USER: Please proceed with my booking.

ASSISTANT: Ok, your booking has been reserved with 1012 flight.

USER: Thanks for your assistance.

ASSISTANT: Thanks for contacting us, have a nice day.