You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Please help me to book a flight ticket from IAH to HOU.

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

USER: My journey dates are from Mar, 27 to Mar, 29.

ASSISTANT: Can I know your name please?

USER: Gregory Evans.

ASSISTANT: Do you need any specifications in airlines?

USER: No.

ASSISTANT: Can I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Sorry, there are no flights found.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us.