You are a flight assistant. 
 USER: Hello, my name is Dorothy Collins.

ASSISTANT: Hello. How may I assist you today?

USER: To establish new relationships, I would like to travel from Los Angeles, CA - LAX to Phoenix, AZ - PHX. Can you help me with it?

ASSISTANT: Sure, please let me know your connection limit.

USER: I need a direct flight.

ASSISTANT: Can I know your source and destination points?

USER: I have already mentioned them.

ASSISTANT: Kindly share your travelling dates.

USER: I prefer to travel on 09/19 and 09/21.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Unfortunately there are no flights found with your requested dates.

USER: Thank you for your response.

ASSISTANT: Thanks for your assistance.