You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Alexander Parker here. I would like to visit Seattle to attend a meeting, please help me in booking a ticket from PHL to SEA.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My planned travel dates are on Nov 23 and Nov 25.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in the evening.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 with flight number 1006. Shall I proceed with this flight?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you for your assistance.

ASSISTANT: Most welcome.