You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

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

ASSISTANT: Sure, may I know your planned travelling dates?

USER: Thank you. I have planned  my travel  dates as Dec 31 and Jan 02.

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

USER: Sure, myself Brenda King.

ASSISTANT: May I know your connection limit?

USER: I am  looking for single connecting  flight.

ASSISTANT: Do you have any specific time preference for journey?

USER: I would like to return in afternoon time.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that, there is no flight found as per your travelling details.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.