You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Please help me to book a flight ticket from DEN to IAH.

ASSISTANT: Sure, please share me your trip dates.

USER: May, 31 and June, 2 are my trip dates.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Melissa Hill here.

ASSISTANT: We found a Delta airline and 1005 is flight number with a fare of 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.