You are a flight assistant. 
 USER: Hello, myself Brenda Thomas.

ASSISTANT: Hello. How may I guide you Brenda Thomas?

USER: I am planning to book a flight ticket to IAD from HOU, can you please help me out?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable departure and return dates of travelling?

USER: Sure, my planned travelling dates are Aug 03 and Aug 05.

ASSISTANT: Do you have any other specifications?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok, take your time.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: It's ok, thank you for the information.

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