You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can aid you today?

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

ASSISTANT: Sure, I will aid you with that. Could you please mention your preferable travel dates?

USER: Yes, my travelling dates are 22 and 24 of March.

ASSISTANT: May I know your name for further process?

USER: My name is Angela Carter.

ASSISTANT: Do you need any break in between your journey?

USER: Yes, I need a break in between the journey.

ASSISTANT: Do you have any another specifications?

USER: I want to depart in the afternoon.

ASSISTANT: Ok, please hold on a moment.

USER: Ok.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: That's fine, thank you for the response.

ASSISTANT: Thank you for reaching us.