You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you?

USER: Could you please check the flight availability in business class?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are Jan 26 and Jan 28.

ASSISTANT: Can you please let me know your source and destination airport codes?

USER: My source is SEA and destination is HOU.

ASSISTANT: Do you have any specifications?

USER: Yes, I am looking for a flight with one connection.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: We found a American Airlines having a fare 900 with flight single connection in business class. Shall I proceed with booking?

USER: Ok, proceed with the booking.

ASSISTANT: May I know your name?

USER: My name is William Lee.

ASSISTANT: Your booking has been processed with flight 1022.

USER: Thank you for the help.

ASSISTANT: Thank you.