You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. May I have your name please?

USER: I am Mark Phillips.

ASSISTANT: What can I do for you now at this moment?

USER: Please book a ticket from Seattle, WA-SEA to Las Vegas, NV-LAS.

ASSISTANT: Ok. Help me with your journey dates.

USER: Departure is on 10/07 and 10/09 is my return date.

ASSISTANT: Delta airline with price 300 in 1012 flight having a connected flight.

USER: Please book a ticket.

ASSISTANT: Booing was completed.

USER: Thanks.

ASSISTANT: Thank you for your time with us.