You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you today?

USER: I am Carol Jackson want to visit San Francisco to enjoy my fun filled holidays, can you book a ticket with price under 1000?

ASSISTANT: Can I know your travelling dates for further process?

USER: Sure, my travelling dates will be 03/23 and 03/25.

ASSISTANT: Please share your airport codes.

USER: Ok, I want to fly from IAH to SFO.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: There is a flight from UA airlines with price 100 for you.

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket is booked in 1009 flight. Thank you for reaching us.

USER: Thank you.