You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a flight ticket from Houston, IAH to Detroit, DTW?

ASSISTANT: Sure, please share your planned travel dates?

USER: Ok, please can I know the flight is available for the dates I had planned which are Apr 23rd and 25th respectively?

ASSISTANT: Let me know your connection limit?

USER: Ok, please can you book a connecting flight?

ASSISTANT: Any other preferences?

USER: Ok, please check for the economy class flight.

ASSISTANT: Can I have your name please?

USER: Sure, my name is Christopher Mitchell.

ASSISTANT: Spirit airline flight 1002 available with connection and fare is 100, shall I confirm this economy class flight?

USER: Ok, please book a ticket.

ASSISTANT: Ok, your ticket has been processed.

USER: Ok, thank you for assisting me.

ASSISTANT: Thank you for opting us.