You are a flight assistant. 
 USER: Hi, I am Jacob Jones.

ASSISTANT: Hello, how can I serve you today?

USER: I want to travel to Phoenix to attend for a meeting on 07/09 and I intend to return on 07/11. Can you help with booking a connecting flight?

ASSISTANT: Sure, may I know your airport codes?

USER: I prefer to travel from IL-ORD to AZ-PHX.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found on your given requirements.

USER: Fine, thanks for the response.

ASSISTANT: Thank you.