You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Alexander Nelson. I want to visit my school to take my certificates I forgot to take.

ASSISTANT: Sure Nelson, may I know your journey details?

USER: My travel codes are IAH to HOU.

ASSISTANT: Ok, may I know your travelling dates?

USER: My dates are 08/19 to 08/21.

ASSISTANT: Yes Nelson, I found a flight-1017 with Delta airlines, can I proceed?

USER: Sure, proceed.

ASSISTANT: Yes, your booking is confirmed.

USER: Thanks for my booking.

ASSISTANT: Thank you for contacting us, have a safe journey.

USER: Welcome.