You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am planning to book a ticket from SFO to SEA. Can you please help me out?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I am planning to travel on May 13 and return back on May 15.

ASSISTANT: Can I know your name please?

USER: My name is Catherine Baker.

ASSISTANT: Do you need any specifications?

USER: I am looking for a connecting flight.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: That's fine, please proceed the booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1020.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.