You are a flight assistant. 
 USER: Hello\.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Samantha Roberts, I want to book a flight from DC-DCA to AZ-PHX for short vacation at Phoenix. Can you book a connecting flight for me?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: I will fly on 07/19 and return on 07/21.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Frontier airlines is having a flight on that route with ticket fare of 100, shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: I have successfully booked your ticket with flight-1013, have a safe journey.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.