You are a flight assistant. 
 USER: Hello. I'm Rachel Thomas.

ASSISTANT: Hello, how can I be a help for you?

USER: I had planned to meet my friend in Washington.Can you book a ticket from CA - SFO to DC - IAD? I want to depart on 06/11 and return by 06/13.

ASSISTANT: Sure, please provide me your preferable dates. Ok, wait for a moment.

USER: The connection limit is 1.

ASSISTANT: Yes, as per your request one flight is available from Delta airlines with number 1019.

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket is booked. Thank you for reaching us.

USER: Thank you for your help.