You are a flight assistant. 
 USER: Hi, I am Dennis Lee.

ASSISTANT: Hello, how may I help you?

USER: Can you please hold me a flight ticket from IAD to DFW?

ASSISTANT: I am here to help you, please mention your journey dates too.

USER: My trip dates are 03/31- 04/02.

ASSISTANT: Sure, can you please share your connection preferences?

USER: I need a single connection.

ASSISTANT: There is a direct flight-1017 on Frontier airlines, shall I proceed?

USER: Please reserve.

ASSISTANT: Ok, booking is done on your name.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us, have a safe trip.