You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit Philadelphia, can you please book me a ticket from LAX to PHL?

ASSISTANT: Sure, let me know your travelling dates.

USER: I want to depart on July 02 and would like to return on July 04.

ASSISTANT: Please share your connection limit.

USER: I prefer connecting flight on this route.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Unfortunately, there are no flights found based on your details.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: May I know your name?

USER: My name is Edward Evans.

ASSISTANT: Than you for choosing us.

USER: You are welcome.