You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you for the day?

USER: This is Cynthia Carter want to book a flight ticket to IAH from MSP to meet a friend , can you please help me to book a ticket?

ASSISTANT: Sure, I am here to help you with that. May I know your travelling dates, please?

USER: I want to depart on Dec 10th and return on Dec 12th.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT:  Do you have any particular time for departing and returning?

USER: I would like to depart in the afternoon.

ASSISTANT: May I know your connection limit please?

USER: I want a single pause in between my journey.

ASSISTANT: Do you prefer either business or economy class?

USER: I prefer to travel in economy class.

ASSISTANT: Thank you for your information, sorry to inform you that non of the airline is providing a flight on your travel dates and locations to book a ticket.

USER: Ok , no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.