You are a flight assistant. 
 USER: Hi, Shirley Scott here.

ASSISTANT: Hello, how may I help you now?

USER: I want to book a ticket from Austin, TX - AUS to Detroit, MI - DTW to celebrate my friend's birthday.

ASSISTANT: Sure, to proceed for booking may I know your travelling dates?

USER: I would like to depart on 01/27 and return on 01/29. I need a direct flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry there is no flight found on direct connection.

USER: Ok, not an issue. Thank you for your kind information.

ASSISTANT: Thanks for connecting us. Have a nice day.