You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Emma Phillips here. I want to attend a Marriage in Philadelphia. Can you please help me for booking the flight ticket?

ASSISTANT: Ok, may I know your airport codes?

USER: My airport codes are from PHX to PHL.

ASSISTANT: Fine, let me know your travelling dates too.

USER: My travelling dates are from 04/20 to 04/22.

ASSISTANT: We have a flight-1014 on Frontier airlines, shall I book it?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ticket has been booked with your preferences.

USER: Thanks for helping me.

ASSISTANT: Thanks for your service.