You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

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

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Apr, 12 and Apr, 14 are my journey dates.

ASSISTANT: Do you have any other specifications?

USER: I am looking for connecting flight.

ASSISTANT: Please help me with your name for booking.

USER: My name is Nancy Parker.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1000. Shall I proceed with this flight?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Most welcome.