You are a flight assistant. 
 USER: Hi, I am Steven white.

ASSISTANT: Hello. How can I guide you?

USER: I would like to fly to Houston to visit Hall of Fame, can you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: I want to start my journey on 06/25 and my return date would be on 06/27.

ASSISTANT: Please share me your source and destination airport codes.

USER: I need to depart from Dallas, TX-DFW to reach Houston, TX-HOU.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: We found a Frontier airline, fight number:1021 and the price is 100.

USER: Everything is fine, you can proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for approaching us.