You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Nancy Williams, want to travel from BOS to JFK. Please help me.

ASSISTANT: Let me know your travelling dates?

USER: My trip dates are from 11/23 to 11/25.

ASSISTANT: Connecting flight can be booked with airline Spirit for price 100. Shall I book a ticket?

USER: Please proceed with the booking.

ASSISTANT: Ticket is booked having flight number 1009.

USER: Thank you.

ASSISTANT: Thanks.