You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you now?

USER: I am planning to attend a science event at Houston, can you please book the flight ticket from DEN to IAH?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: Sure, I want to depart on 10/12 and also book the return ticket on 10/14.

ASSISTANT: Ok, may I know your name please?

USER: My name is Brian Nelson.

ASSISTANT: There is a flight 1009 in AA airline has the price 100 and the connection limit is 1. Shall I proceed with this booking?

USER: That's perfect! You can book the ticket.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you very much.

ASSISTANT: Thank you for reaching us, have a nice day.