You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit Houston Zoo with my family, can you help me with booking?

ASSISTANT: Sure, let me know your airport codes?

USER: My airport codes are LAS to HOU.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are Jan 19 and Jan 21.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your good name to proceed further?

USER: I am Justin Anderson.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: United Airlines providing connecting flight in the economy class with fare 100, can I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed with flight number 1000.

USER: Thank you for confirming my ticket.

ASSISTANT: Thank you for choosing us.