You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me to book flight ticket from PHX to LAS?

ASSISTANT: Sure, may I know your trip dates?

USER: My journey dates are Feb 6 and Feb 8.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Any other requirements to be met?

USER: I would like to return in the evening.

ASSISTANT: May I know your good name?

USER: Catherine Parker here.

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

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.