You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sarah Jones.

ASSISTANT: How may I help you?

USER: I planned to attend for a seminar in PHX, can you please help me to book a flight ticket from JFK?

ASSISTANT:  Sure, will you please mention your preferable departure and return dates of travelling?

USER: I prefer to travel on Jul 13 and Jul 15.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: I would like to depart in afternoon in a connecting flight.

ASSISTANT: Sorry, no flight is available for you as per your requests.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thanks for choosing us.