You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking for a flight from BOS to ORD, can you please help me in booking?

ASSISTANT: Sure, please provide me your planned travel dates.

USER: My planning dates are from Aug 11 till Aug 13.

ASSISTANT: Do you have any specific airline preference?

USER: I am comfortable with any airline.

ASSISTANT: Do you prefer either economy or business class?

USER: I prefer economy class.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: I don't have any specific time.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Christopher Rodriguez.

ASSISTANT: We have a connecting flight from Delta airlines, number 1020 and the price is 100. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Your economy class seat is reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.