You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Timothy Lewis.

ASSISTANT: How can I help you?

USER: I need to book a flight ticket from JFK to PHX. Please help me in booking a flight ticket.

ASSISTANT: Can I know your travelling dates?

USER: My journey dates are from June, 23 to June, 25.

ASSISTANT: Do you have any preference?

USER: I need to depart in the afternoon and I need a connecting flight.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: No problem, thanks for your information.

ASSISTANT: Thank you.