You are a flight assistant. 
 USER: Hi, I am Christopher Nelson.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to visit Cockrell butterfly center in Houston. Can you aid me to book a connecting flight?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your planned journey dates?

USER: I want to fly on Oct 19 and Oct 21.

ASSISTANT: May I know your budget for flight ticket?

USER: My budget for this journey is 500.

ASSISTANT: Please mention your source and destination airport codes?

USER: I want to board from IAH and land at HOU.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a connecting flight 1000 of airline Spirit, fare is 100 and class is economy. Shall I proceed with booking?

USER: Please proceed with the booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for visiting us, have a nice journey.