You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I need to travel Austin, can you please book flight ticket from Detroit?

ASSISTANT: Sure, may I know your travel point codes?

USER: My travelling airport codes are DTW and AUS.

ASSISTANT:  Could you provide me your travel dates?

USER: My travelling dates are Oct,14 and Oct,16.

ASSISTANT: Do you have connection preference?

USER: I looking for single connection.

ASSISTANT:  How much can you afford for the journey?

USER: I can spend 500 for my trip.

ASSISTANT:  May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: We found a connecting flight Delta with flight number 1020 and fare is 100. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: May I know your good name for further process?

USER: Edward Garcia here.

ASSISTANT:  Your booking is confirmed with Economy class.

USER: Thank you for helping me.

ASSISTANT: Thank you for availing us.