You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Carter.

ASSISTANT: How may I help you David?

USER: I would like to visit Reunion Tower in Dallas on a vacation trip. Can you please book a flight ticket from SEA to DFW?

ASSISTANT: Sure, can I know your dates of travel?

USER: Sure, I have planned my dates as 11/16 and 11/18.

ASSISTANT: There is a flight available with AA airlines on your requested locations. Shall I proceed?

USER: Ok, please proceed with booking.

ASSISTANT: Ok, your ticket is booked and the flight number is 1010.

USER: Thank you for booking.

ASSISTANT: Thank you, hope you enjoy your vacation.