You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you now?

USER: I need you to book a flight ticket from PHX and PHL. Please help me.

ASSISTANT: Sure, I am here to help you. May I know your travelling dates, please?

USER: October 23 and 25 are my travelling dates.

ASSISTANT: Do you have any limit on number of connections?

USER: Yes, I need a break in my journey.

ASSISTANT: May I know about your other specifications for the journey?

USER: I would like to fly in a business class.

ASSISTANT: Let me know your good name to proceed further for documentation purpose.

USER: Cynthia Clark, here.

ASSISTANT: Sorry to say that, we have not any flights running on your desired routes.

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.