You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: Edward Clark here. I'm planning to spend this weekend with family staying at SFO, can you please book a ticket from SEA?

ASSISTANT: Sure. May I know your travelling dates please?

USER: Sure, my planned departure and return travel dates are 2nd and 4th of October.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, even if it is direct flight also, I'm ok with that.

ASSISTANT: Do you have price limit?

USER: Yes, I can afford upto 200 for my ticket.

ASSISTANT: Thank you for being patience, there is a flight available in Southwest airline, flight number 1015 having fare 100 and a lay by. Can I proceed to book?

USER: That's fine, you can proceed for booking the ticket.

ASSISTANT: Your reservation has been successfully processed.

USER: Thank you so much for your help in booking the ticket.

ASSISTANT: Thank you for reaching us.