You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: Samuel Roberts here, I am planning to book a ticket from DCA to SFO to meet my friend.

ASSISTANT: May I know your travel dates please?

USER: I am planning it from 12/24 to 12/26.

ASSISTANT: Flight-1005 with Delta airline is available, shall I proceed with booking?

USER: Check the price limit is 500 and 1 connection limit.

ASSISTANT: Ok, your fare and connections are satisfied.

USER: Please book my ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thanks for reaching us. Have a great day.