You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Samantha Perez here.

ASSISTANT: How can I help you today?

USER: Please help me out in booking the ticket from DCA to IAH.

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My trip dates will be Mar 4 to Mar 6.

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

USER: I need a halt in between the journey.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Let me know your departure time and arrival time.

USER: My return time must be in the afternoon.

ASSISTANT: Do you have any specification?

USER: No.

ASSISTANT: We found a flight 1006 in Delta airlines with 1 stopover and it costs you 200. Can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe flight.