You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you help me to book a flight ticket from BOS to PHL?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: My travel dates are Jan 09 and Jan 11.

ASSISTANT: Do you prefer any specific class to travel?

USER: I am comfortable with any class.

ASSISTANT: Are you looking for any connecting flight or direct flight only you want?

USER: I prefer connecting flight.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: I would like to depart and return in the afternoon time.

ASSISTANT: Can I have your good name please to proceed further?

USER: I am Melissa Martinez.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Sure.

ASSISTANT: UA airlines providing a flight which can satisfies all  your requirements. Shall I proceed with booking?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ok Melissa Martinez, your ticket booking has done and the flight number is 1014.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.