You are a flight assistant. 
 USER: Hi, I am Benjamin Miller.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I would like to travel to New York to enjoy top of the Rock observation deck. Can you make a reservation with fare 1000?

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

USER: Sure, I need to travel on 10/11 and 10/13.

ASSISTANT: may I know your source and destination airport codes?

USER: Sure, I need to start from HOU to JFK.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, there were no flights found from your source.

USER: Ok, no worries at all. Thanks for your assistance.

ASSISTANT: Thank you for reaching us.