You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ronald Baker here.

ASSISTANT: How can I assist you today?

USER: Can you please check for the flight from SFO to DTW?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My journey dates are from Dec 20 to Dec 22.

ASSISTANT: Do you have any specifications?

USER: My return time is in evening.

ASSISTANT: Do you have any other preferences?

USER: No, thanks for asking.

ASSISTANT: Please give me a moment.

USER: Take your time.

ASSISTANT: Thanks for waiting. The Hawaiian airline is providing an economy class flight with price 100 and the connections 1. The return time is 2:00 AM. Shall I confirm your ticket?

USER: You may book it.

ASSISTANT: Your ticket is booked. The flight number is 1010.

USER: Thank you for choosing our services.

ASSISTANT: Welcome, have a great day.