You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Betty Moore.

ASSISTANT: How may I guide you today?

USER: I need to travel Houston, can you please reserve flight ticket from SFO and IAH?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: My travelling dates are 03/24 and 03/26.

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

USER: I will be waiting.

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

USER: That's ok, thank you searching flights.

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