You are a flight assistant. 
 USER: Hello, I am Stephanie Gonzalez.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to visit a NASA space center in Houston, so please book a flight ticket within a price limit of 200.

ASSISTANT: Sure, I will help you with booking. Please share me your airport codes?

USER: My source and destination airport codes are TX - HOU, TX - IAH.

ASSISTANT: Do you want any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Please share me your depart and arrival dates?

USER: My departure day is 06/07, return day is 06/09.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a connecting flight 1021 of airline AA and fare is 200. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

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