You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Patrick Wilson. Can you please help me in booking a flight ticket from PHL to LGA?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: I would like to fly on May 30 and return on June 01.

ASSISTANT: Ok, do you have any connection limit?

USER: Yes, I need a single connection.

ASSISTANT: Ok, may I know your return time and departure time?

USER: I would like to return in the afternoon time.

ASSISTANT: Ok, do you have any other requirements?

USER: No.

ASSISTANT: Sorry, no flights are available on your route.

USER: Not an issue. Thank you.

ASSISTANT: Welcome.