You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, may I know how best I can help you today?

USER: Myself Richard Allen. Due to lack of knowledge my brother can not book a flight ticket for my trip, so can you please help me to book the flight ticket?

ASSISTANT: Yes, you are in correct place that we can place even advance flight ticket booking also.

USER: Wow! thanks a lot for accepting my request about it.

ASSISTANT: That's fine. For booking your ticket, I need some of your travelling details.So that I can book your flight ticket.Can you provide it?

USER: I am happy to share the details about my journey. What details you want for that please let me know so that I can give you?

ASSISTANT: Ok, please provide the dates of your journey to travel.

USER: I want to start my journey on 06/26 and want a return flight on 06/28 dates.

ASSISTANT:  Ok, please provide the runway codes which is suitable for you.

USER: Ok, the runway codes I'm preferring to move to DFW from MSP which is our home city.

ASSISTANT: Sorry for the inconvenience caused, no flights will run on those days to that locations due to tornado alert.

USER: Ok, no issues. Thank you for sharing the information.

ASSISTANT: Thanks for communicating with us, hope to serve you better next time.