You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have a concert in Houston, can you help me in booking a ticket?

ASSISTANT: Sure, may I know your name?

USER: My name is Mark Wilson.

ASSISTANT: Help me by giving your trip dates.

USER: My journey is of 2 days from 08/30 to 09/01.

ASSISTANT: May I know your travelling airport codes?

USER: I want to fly from PHL to IAH.

ASSISTANT: There is a flight-1020 with connection 1 and price 100, shall I proceed?

USER: You can book this flight ticket.

ASSISTANT: Ok, your ticket has been done with Southwest airlines.

USER: I appreciate your help.

ASSISTANT: Welcome, have a safe journey.