You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Carolyn Lopez here.

ASSISTANT: How can I help you Lopez?

USER: I want to meet my sister-in-law at Seattle, so please book my ticket from New York.

ASSISTANT: On which dates do you want to travel?

USER: My itinerary dates are 07/21 and 07/23.

ASSISTANT: Could you please provide the source and the destination airport codes?

USER: I will be travelling from JFK to SEA.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT:  There is a connecting flight with fare 100, the number is 1005 in airline Delta.

USER: Go ahead to book my ticket.

ASSISTANT: Lopez, your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.