You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Steven Walker.

ASSISTANT: Walker, how can I help you?

USER: I want a book a flight ticket for Houston, IAH from Houston, HOU. My travel dates are 12/15 and 12/17.

ASSISTANT: Give me a minute, let me check the details.

USER: Sure.

ASSISTANT: I found a flight on your request with 1 connection. The flight 1020 of Spirit airlines. Shall I proceed?

USER: Proceed.

ASSISTANT: Walker, your ticket is booked successfully.

USER: Thank you.

ASSISTANT: You are welcome.