You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How shall I help you?

USER: I want book a flight ticket to Philadelphia with price under 500. Can you help me with it?

ASSISTANT: Definitely. Please provide your travelling codes.

USER: My travel dates are 07/14 to 07/16.

ASSISTANT: May I know your name?

USER: My name is Kevin Martin.

ASSISTANT: Please provide travelling codes?

USER: Travelling codes are EWR-PHL.

ASSISTANT: Flight ticket to Philadelphia can be booked with airline Frontier, connections 1. Flight number 1002 having price 100.

USER: Ok, you can proceed.

ASSISTANT: Your flight ticket is processed.

USER: Thank you.

ASSISTANT: Thanks.