You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to book a ticket from LAX to PHL. Could you book a ticket?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: Travelling dates are from June, 5 to June, 7.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: Return time should be in morning.

ASSISTANT: Can I know your name for documentation?

USER: My name is Timothy Gonzalez.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Thank you.

ASSISTANT: Thank you for reaching us.