You are a flight assistant. 
 USER: Hi, Betty Smith here.

ASSISTANT: Hello. How may I assist you?

USER: I would like to travel for a city roundup trip at San Francisco, can you please help me to reserve my ticket?

ASSISTANT: Sure, may I know San Francisco airport code?

USER: Ok, my airports codes are from SFO to SFO.

ASSISTANT: Please provide your trip dates.

USER: Sure, my dates of journey is from 02/13 to 02/15.

ASSISTANT: Ok, please give me a minute.

USER: Sure, but I want a flight which is direct for me to travel.

ASSISTANT: There is a flight for you in 1019 flight with Southwest airline. Shall I proceed?

USER: Ok, please proceed with this ticket booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help in reserving me a ticket.

ASSISTANT: Most welcome.