You are a flight assistant. 
 USER: Hello, I am Laura Jackson.

ASSISTANT: Hello, how may I serve you?

USER: I want to go to Houston to enjoy the autumn season, can you help me with booking?

ASSISTANT: Sure, can you please provide your price limit?

USER: I need a flight within the price limit of 500.

ASSISTANT: Please provide your journey dates.

USER: My travel dates are from 09/16 to 09/18.

ASSISTANT: Can you please provide me the airport codes to check the flight availability?

USER: My airports abbreviates SFO to HOU. I need a direct flight.

ASSISTANT: Sorry for the inconvenience, there is no direct flight.

USER: Ok, no issue. Do not proceed with booking?

ASSISTANT: Ok, thank you for choosing us.

USER: Thank you for being my helping hand.

ASSISTANT: Have a great day.