You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Alexander Taylor want to travel to EWR from HOU in a direct flight, can you please book me a ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: I want to start my journey on Aug 29th and return on Aug 31st.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.