You are a flight assistant. 
 USER: Hi, I am Emma Hill.

ASSISTANT: Hello Hill, how can I help you today?

USER: I need to book a ticket for celebrating my brothers birthday in orphanage home on 04/13.

ASSISTANT: That's good, may I know your airport codes and return date please?

USER: Sure, my airport abbrevatries are PHX and I intent to return on 04/15 from IAH.

ASSISTANT: Ok, just hold on.

USER: Sure.

ASSISTANT: There is a flight available with us from Southwest airline. Do you like to proceed?

USER: You can proceed with booking.

ASSISTANT: Ok, your ticket has been booked with the flight number 1011.

USER: Thank you for helping me.

ASSISTANT: Most welcome.