You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Lisa Roberts, Can you book a flight ticket from IAH to IAD?

ASSISTANT: Please, share your journey dates.

USER: My trip dates are Aug 29th - Aug 30th.

ASSISTANT: Kindly, mention your connection limit.

USER: I need a connecting flight.

ASSISTANT: Please, stay online. I will get the flight details and revert to you.

USER: Sure.

ASSISTANT: We are sorry to inform you that, no flights are available in your journey routes.

USER: Ok, thank you for quick response.

ASSISTANT: Thank you for reaching us, have a good day.