You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I need to travel from DTW to LAS, can you help me?

ASSISTANT: Sure, we are pleased to serve you. May I know your itinerary dates?

USER: My trip dates are 04/03 and 04/05.

ASSISTANT: Do you prefer any lay by in your journey?

USER: I need a connecting flight.

ASSISTANT: May I know your airline preference?

USER: I am ok with any flight.

ASSISTANT: At what time, you want to depart and arrive?

USER: Any time is comfortable to me.

ASSISTANT: Can you share me your good name please?

USER: I am Donald Hernandez.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: There is a connecting flight with fare of 200 and 1003 flight number. Shall I proceed?

USER: Yes, go with that.

ASSISTANT: Your seat has been reserved with Delta airlines in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.