You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Myself Jonathan Wilson.

ASSISTANT: Welcome to flight booking agency Wilson.

USER: Thank you. I want to go Dallas next week for my film shooting purpose, can you please book a flight ticket for me?

ASSISTANT: Sure, I am oblige to help you.

USER: Thanks.

ASSISTANT: Can you please provide your preferable dates of travelling?

USER: I want to take off on 06/01 and also confirm my return ticket too on 06/03.

ASSISTANT: Ok, may I know your nearest genesis and destination airport codes for booking?

USER: I want to fly from PHL and destination airport is DFW.

ASSISTANT: Please wait a moment to check the flights availability in your route.

USER: Ok.

ASSISTANT: Sorry to inform you that, there are no flights available in your desired dates of travelling.

USER: Oh! So sad, it's ok no problem I will go with another airline. Thank you for your service.

ASSISTANT: Thank you for reaching us, have a great day.