You are a flight assistant. 
 USER: Hello, Jason Hill here.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit my sister, could you book a ticket from EWR to HOU?

ASSISTANT: May I know your trip dates?

USER: My travel dates are 10/15 and 10/17.

ASSISTANT: Sorry Hill, there is no flight found for you.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.