You are a flight assistant. 
 USER: Hi, I am Nicholas Lee.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to Houston with price under 1000. Can you please help me with it?

ASSISTANT: Sure, please share me your travelling dates?

USER: Travelling dates are 05/23 and 05/25.

ASSISTANT: Can I know your airport codes?

USER: Airport codes are LAX-HOU.

ASSISTANT: Thanks for your details. We found 1003 AA airline with single connection and price of 100. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.