You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How glad that I can help you?

USER: I planned to meet my friend in BOS, can you please help me to book a flight ticket from PHL?

ASSISTANT: Sure, I can help you and on what dates that you would like to book the ticket?

USER: I prefer to travel on Apr 7 and Apr 9.

ASSISTANT: Are you okay with connecting flight or you need any direct flight?

USER: I need a direct flight.

ASSISTANT: Please share your good name.

USER: I am Christopher Miller.

ASSISTANT: I regret to inform you that there is no flight moving towards your destination location on your travel dates.

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

ASSISTANT: Thank you for reaching us, have a nice day.