You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Can you please book a flight ticket from CLT to HOU?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are 11/18 and 11/20.

ASSISTANT: Can I know your name please?

USER: Yes, my name is Larry Gonzalez.

ASSISTANT: Do you need any specifications?

USER: I need a ticket under normal cost.

ASSISTANT: Can I know your preferences?

USER: I need a connecting flight.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the response.