You are a flight assistant. 
 USER: Hi, I am Brian Hill.

ASSISTANT: Hello, thanks for connecting with us. How can I help you?

USER: I need to book a ticket from IAH to DTW to attend my sister engagement. Could you please help me doing that?

ASSISTANT: When would you like to travel?

USER: My travelling dates are 04/07 and return on 04/09.

ASSISTANT: UA airline is providing a ticket with your requested route. Shall I proceed with it?

USER: You can proceed with that airline.

ASSISTANT: Ok. Your reservation is confirmed with flight 1026.

USER: Thank you for reserving a ticket.

ASSISTANT: Thank you and have a nice day.