You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I guide you?

USER: I am George King. I am planning to visit NASA space center in Houston. Can you help me to book a connecting flight?

ASSISTANT: Sure, can I know your airport codes?

USER: It is a round trip, my airport codes are IAH.

ASSISTANT: Ok, can I know your preferable dates?

USER: My dates are Dec 03 and Dec 05.

ASSISTANT: I found a flight with a fare of 100 and there is a 1 halt in your journey and the flight number is 1011 in Southwest airlines, shall I proceed with ticket booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Thank you, have a good day.