You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to enjoy in Beer festival with my friends at Boston, BOS. Can you please book a ticket from PHL?

ASSISTANT: Kindly, mention your trip dates.

USER: My travelling dates are Jan 5 and Jan 7.

ASSISTANT: Is there any connection limit?

USER: I want single connected flight.

ASSISTANT: Do you prefer either economy or business class?

USER: I am comfortable with any class.

ASSISTANT: Are there any other specifications?

USER: My return time is evening.

ASSISTANT: Please forward your name.

USER: I am Angela Allen.

ASSISTANT: We found a connecting flight of fare 200 with airline Delta and number 1022. Can I book?

USER: Ok, please confirm.

ASSISTANT: Your ticket has been confirmed in economy class and return time is in the evening at 2:00 hours.

USER: Thank you.

ASSISTANT: Thank you.