You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Jacob Hill. I have to attend my sister's wedding at Phoenix, could you please help me with booking a flight ticket from IAH to PHX?

ASSISTANT: Sure, can you please share your travel dates?

USER: I would like to take off on 02/24 and return on 02/26.

ASSISTANT: Let me check for the availability of flight.

USER: I am looking for a direct flight.

ASSISTANT: Jacob, I am sorry to inform you that there is no flight available at your request.

USER: That's ok, no issues. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.