You are a flight assistant. 
 USER: Hello. I am Samantha Green.

ASSISTANT: Hello, how may I assist you for today?

USER: Can you find a flight ticket for me from my region HOU to meet my parents in BOS?

ASSISTANT: Yes, I feel happy to assist you about it. Can you please let me know your dates of journey?

USER: I am planning to move in 05/17 and 05/19.

ASSISTANT: Sorry Green, there is no flights on your preferable route.

USER: Ok, that's fine, thank you.

ASSISTANT: My pleasure, thank you for reaching out here.