You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I want to visit EWR to attend a company meeting. Please help me in booking a flight ticket.

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable departure and return dates of travelling?

USER: My trip dates are Jul 2 to Jul 4.

ASSISTANT: From which airport would you like to travel?

USER: My source airport code is PHL.

ASSISTANT: Can I know your name to book the flight ticket?

USER: Please book under the name Andrew Miller.

ASSISTANT: Are you ok with connecting flight?

USER: I need a connecting flight which depart in afternoon.

ASSISTANT: Any other preferences do you have?

USER: No.

ASSISTANT: Please wait a moment.

USER: Sure, I will be waiting.

ASSISTANT: We regret to inform you that, there are no flights available for your journey with your requested timings.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching to our services, hope you have a great day.