You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Gregory Johnson here. I want to visit Houston with my family, can you book the flight ticket?

ASSISTANT: Sure, I am blissful to help you. May I know your airport codes?

USER: Thank you. My airport codes are from DFW to HOU.

ASSISTANT: Please share me your travelling dates?

USER: My travel dates are from 02/20 till 02/22.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a connecting flight with AA airline. Shall I proceed?

USER: Please, proceed it.

ASSISTANT: Your booking has been confirmed with flight number 1008.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us, have a safe journey.

USER: Welcome.