You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I am Stephanie Baker. I am planning to meet my parents after a long time in HOU, can you please aid me in making an airline reservation from PHL?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates,.

USER: My trip dates are Dec 11 and Dec 13.

ASSISTANT: May I know your destination airport code? Ok, found it in the above. Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry Stephanie Baker, there is no flight in your route.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.