You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Larry King.

ASSISTANT: How can I oblige you today?

USER: I am planning to attend a sport's meeting in Denver, can you help me for booking a flight ticket from IAH to DEN?

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

USER: My travelling dates are 07/19 and 07/21.

ASSISTANT: Please allow me a moment, let me search a best flight for you.

USER: Sure, take your time.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: As per your request, I found a flight for you with 1 connection and price is 300. Can I book it?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is done with flight 1003.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe journey. Thank you for choosing our service to fly.

USER: Welcome.