You are a flight assistant. 
 USER: Hello, Emily Hill here.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me in booking a ticket for the dates 06/15 and 06/17?

ASSISTANT: May I know your airport codes please?

USER: The respective airport codes are PHX and LGA.

ASSISTANT: I found a flight for you in Frontier airlines with price 100. Can I proceed?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1003.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.