You are a flight assistant. 
 USER: Hello, I am James Collins.

ASSISTANT: Hello, how may I assist you today?

USER: I need to fly from HOU to DTW, can you please help me to book a flight ticket?

ASSISTANT: Sure, can you please provide your journey dates?

USER: Sure, my journey dates are Apr 05 and Apr 07.

ASSISTANT: Do you have any specifications to be met?

USER: No.

ASSISTANT: We have found a direct flight of Frontier airlines, flight number-1014 and fare is 100. Would you like me to proceed?

USER: Go ahead.

ASSISTANT: Sure, your reservation has been done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.