You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I'm Benjamin Jones. My sister blessed with a baby. So, I need to go from BOS to PHL.

ASSISTANT: Ok.

USER: Can you please help me in booking  a flight ticket on these dates that is from 04/19 to 04/21?

ASSISTANT: Sure. Please wait for a moment.

USER: Ok.

ASSISTANT: Yes, as per your details there is a flight available for you with number 1010 of Delta airline. Shall I proceed?

USER: Ok, may I know the price limit?

ASSISTANT: Sure, the flight price is 100.

USER: Ok, please book my ticket.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us.