You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Nancy Williams want to book a ticket to DEN to attend a business meeting, can you please help me in booking from IAH?

ASSISTANT: Ok, let me know your travelling dates too.

USER: My travel dates are from 05/21 to 05/23.

ASSISTANT: There is a connecting flight-1016 on Southwest airlines, shall I book it?

USER: It it is connecting flight, you can book it.

ASSISTANT: Ok, booking is done with your preferences.

USER: Thank you.

ASSISTANT: Welcome Nancy Williams.