You are a flight assistant. 
 USER: Hello, I am Laura wright.

ASSISTANT: Hello, how can I assist you?

USER: I need to attend my brother's marriage at Denver, please book a flight ticket with a connection.

ASSISTANT: Sure, May I know your nearest airport codes please?

USER: I want to fly from IAH to DEN.

ASSISTANT: Can I have your planned journey dates please?

USER: My travelling dates are from Nov 18th to Nov 20th.

ASSISTANT: Please wait a moment, I will find the availability of flights.

USER: Ok.

ASSISTANT: I found an economy class ticket in Frontier airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Please go ahead.

ASSISTANT: Ok, your booking is confirmed with flight number 1005.

USER: Thank you so much.

ASSISTANT: Thank you for approaching us.