You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I am Ruth Roberts. I want to meet my friend in Dallas & Fort Worth. I need a new business suggestions from him. Can you book a flight for me on 05/09 to 05/11?

ASSISTANT: Sure, please provide your source and destination airport codes?

USER: My airport codes are PHX - DFW.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure. I need one connection. Price limit should not exceed 1000.

ASSISTANT: Thank you for your patience. Sorry, we have a direct flight.

USER: Ok, do not proceed for further. Thank you for your service.

ASSISTANT: Ok, Thank you for reaching us.