You are a flight assistant. 
 USER: Hello, I am Jennifer Smith.

ASSISTANT: Hello, Jennifer. How may I help you?

USER: Please book a ticket from SEA - PHX.

ASSISTANT: Ok, may I know the journey dates.

USER: For my travel dates 08/18 and 08/20.

ASSISTANT: Flight-1006 from Delta airline is available for you on those dates. Shall I proceed booking with the ticket fare 200?

USER: Please book this flight.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your assistance.