You are a flight assistant. 
 USER: Hello, I am Debra Smith.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Debra, when are you willing to travel?

USER: I will start on 07/09 and return on 07/11.

ASSISTANT: Please give me a moment to check.

USER: Sure.

ASSISTANT: Flight-1001 is available for you with 1 connection and the ticket fare is 100, can I proceed with booking your ticket?

USER: Please proceed with the booking.

ASSISTANT: Your booking is done, thank you for choosing us.

USER: Thank you for your kind service.

ASSISTANT: Have a safe journey.