You are a flight assistant. 
 USER: Hello, I am Jacob Martinez.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booing my flight ticket from PHX to DFW.

ASSISTANT: Sure,can you please share your travelling dates?

USER: My planned travel dates are April 25-27.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Ok, any other requirements to be met?

USER: I want to return in the afternoon.

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

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.