You are a flight assistant. 
 USER: Hello. I am Gregory Lewis.

ASSISTANT: Hello, how can I assist you?

USER: I would like to attend a science museum at Denver, can you help me to book a flight ticket from IAH to DEN?

ASSISTANT: Sure, Do you like to go with a connecting or direct flight?

USER: I need a connecting flight.

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

USER: I am travelling from Oct 15 to Oct 17.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your patience, we found a connecting flight in 1003 American Airlines with a fare of 100.

USER: Please proceed to book my ticket in the airlines.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.