You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I lend a hand to?

USER: Can you please book a flight ticket from BOS to IAH?

ASSISTANT: Could you please share me your travel dates?

USER: Thank you. I have planned my travel dates as Sept 17 and Sept 19.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I would like to return in afternoon time so please check with that.

ASSISTANT: Do you have any other criteria?

USER: I would prefer single connecting flight.

ASSISTANT: There is a flight with Frontier Airlines and the ticket fare is 100. Shall I proceed for this?

USER: That is fine, please proceed with booking.

ASSISTANT: May I know your name please?

USER: Sure, myself Eric Lee.

ASSISTANT: Your ticket is reserved in economy class with the flight-1011.

USER: Thank you for your help.

ASSISTANT: Thank you very much for connecting with us.

USER: Most welcome.