You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to book a flight ticket from Houston TX - IAH to MI - DTW, so please help me in booking a flight ticket.

ASSISTANT: Could you provide me your travel dates?

USER: I would like to fly on 06/12 and return on 06/14.

ASSISTANT: Do you have any preference?

USER: I need a halt in between my journey.

ASSISTANT: May I know your good name?

USER: I am Janet Lee.

ASSISTANT:  Please wait a moment I will revert you.

USER: Sure.

ASSISTANT:  Sorry to notify you that no flights were available on your travel dates.

USER: Not an issue.

ASSISTANT:  Thank you for availing us.

USER: Thank you.