You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank Hall.

ASSISTANT: What kind of assistance you are looking for?

USER: Can you assist me in booking a flight ticket to Seattle, SEA to attend a seminar in my college?

ASSISTANT: Sure. I need your source point to book a ticket.

USER: Denver, DEN is my source point.

ASSISTANT: For booking a ticket, please aid me with your travelling dates.

USER: I would like to depart on 08/18 and return on 08/20.

ASSISTANT: What is your price limit?

USER: My fare limit is 1000.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: There is a flight with 1 connection of price 100 in Southwest airline of 1017 flight. Can I reserve it?

USER: Please, proceed.

ASSISTANT: Reservation has been done. Thank you for picking us.

USER: Thank you for your help.