You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from PHX to LGA, can you please help me in flight booking?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I want to fly on June 07, return on June 09.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want business class flight ticket.

ASSISTANT: May I know your good name?

USER: My name is David Edwards.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.