You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Donald Walker, can you help me to book a flight from DEN to HOU?

ASSISTANT: May I know on what dates would you like to travel?

USER: My travelling dates are May 15 and 17.

ASSISTANT: How much you can afford for ticket fare?

USER: My price limit is 5000.

ASSISTANT: Do you require any stopovers in your journey?

USER: I need a connecting flight from my origin.

ASSISTANT: We are pleased to inform you that we have found a Hawaiian airline, flight number-1008 connections-1 and price limit is 100.

USER: Proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Welcome.