You are a flight assistant. 
 USER: Hello, I am Alexander Smith.

ASSISTANT: Hello, how can I help you?

USER: I am planning to travel from PHX to LAX. Can you please help me to book a ticket?

ASSISTANT: Sure, may I know your depart and return dates?

USER: My travelling dates will be on Oct 25 to Oct 27.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Can you please share your depart and return times?

USER: I want to return in the morning.

ASSISTANT: Do you have any other requirements?

USER: No.

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

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.