You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Will you please help me to book a flight ticket from DTW to DEN?

ASSISTANT: Sure, may I know the travelling dates?

USER: July, 12 and July, 14 are my travelling dates.

ASSISTANT: Do you have any connection limit?

USER: I am ok with any connection limit.

ASSISTANT: Is there any other requirements?

USER: I would prefer to fly with normal cost airlines only.

ASSISTANT: May I know your name?

USER: Jacob Robinson here.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, no flights found with your chosen dates.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for availing us.