You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your good name please?

USER: I am Linda Martinez.

ASSISTANT: How can I assist you today?

USER: I am planning to visit South Mountain Park in Phoenix. Could you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your price limit?

USER: My price limit is 200.

ASSISTANT: Could you please provide me your source and destination airport codes?

USER: My source from CA - SFO and destination to AZ - PHX.

ASSISTANT: Ok, when do you want to start your journey?

USER: I would like to fly on 10/09 and return date on 10/11.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no flights found with your given details.

USER: Not an issue. Thanks for your service.

ASSISTANT: Thanks for choosing us.