You are a flight assistant. 
 USER: Hello, myself Kenneth Thomas.

ASSISTANT: Hello, how may I help you?

USER: I would like to attend Film Festivals at Phoenix, AZ - PHX. Can you book a flight ticket from San Francisco, CA - SFO?

ASSISTANT: Sure, I will assist you.

USER: Thank you.

ASSISTANT: Could you please let me know your dates of journey?

USER: I will fly on 09/02 and recur on 09/04.

ASSISTANT: How much can you afford for a ticket fare?

USER: Price should not exceed 1000.

ASSISTANT: Thank you for your details, we do not found any flights running in your given data.

USER: That's ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us. Have a nice day.