You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: Can you help me to book a flight ticket from DCA to IAH?

ASSISTANT: Sure, let me know your trip dates?

USER: 03/20 and 03/22 are my travelling dates.

ASSISTANT: Any requirements to be met?

USER: I need a break in between my journey.

ASSISTANT: Can you share your name please?

USER: Elizabeth Hill here.

ASSISTANT: Frontier Airlines has a connecting flight with number 1018 for fare 800, shall I proceed?

USER: That's Perfect, You can reserve it.

ASSISTANT: Your ticket is reserved in business class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.