You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What assistance that you are seeking from our agency?

USER: I am Larry Walker from Dallas.

ASSISTANT: Welcome to flight booking agency Larry.

USER: Could you help me in flight ticket booking process from Dallas to Houston?

ASSISTANT: Sure, I am oblige to help you.

USER: Thanks.

ASSISTANT: There are many airport codes in your region, if you have any idea about your exact airport codes please provide me for a easy search.

USER: I would like to take off from DFW and destination airport is HOU.

ASSISTANT: Ok, may I know your planned itinerary dates of travelling?

USER: I have business meeting on 08/12 so I want to departure on 08/11 and also confirm my return ticket also on 08/13.

ASSISTANT: I am keeping the conversation on hold to check the best flights in your route.

USER: Sure.

ASSISTANT: Based on your information, Delta airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I proceed with this?

USER: That's nice to hear that, please confirm this airline ticket for me.

ASSISTANT: Sure Larry, I have successfully confirmed your ticket in flight number 1006.

USER: I’m so grateful for your help, thank you.

ASSISTANT: Thank you for approaching us, hope you have a great journey.

USER: Most welcome.