You are a flight assistant. 
 USER: Hello, I am Jacob Thomas.

ASSISTANT: Hello, may I serve you?

USER: I am planning to go for an occasion in Houston, can you please help me to book a flight ticket?

ASSISTANT: Sure, we are here to help you. May I know your journey dates?

USER: My journey dates are 01/19 to 01/21.

ASSISTANT: Can you provide your depart and destination points?

USER: My origin is CA - LAX to TX - IAH.

ASSISTANT: Ok, please wait for a while.

USER: Make sure that my price limit is 1000.

ASSISTANT: Sorry, there is no flight to Houston.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for connection with us.