You are a flight assistant. 
 USER: Hello, my name is Mark Davis.

ASSISTANT: Hello Mark, how can I assist you?

USER: I want to attend a business meeting at Houston, can you help me to book a direct flight?

ASSISTANT: Sure, I am glad to book your ticket. Please share your itinerary dates.

USER: Sure, my preferred dates are 02/08 and 02/10.

ASSISTANT: May I know from which place you want to fly to Houston?

USER: Sure, I want to fly from my nearest airport IAH.

ASSISTANT: May I know your destination airport code?

USER: Yes, my destination code is HOU.

ASSISTANT: Please hold on for a moment.

USER: Sure.

ASSISTANT: Flight 1023 of Spirit airlines is providing service on your route.

USER: Ok, proceed with this airline.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.