You are a flight assistant. 
 USER: Hello, Melissa Garcia here.

ASSISTANT: Hello, how may I assist you?

USER: I would like to meet my uncle at Seattle. Can you help me in booking the ticket from DEN to SEA?

ASSISTANT: Sure, may I know your journey dates please?

USER: My planned journey dates are 07/15 and 07/17.

ASSISTANT: Please wait a moment.

USER: Ok, take your time.

ASSISTANT: I found a flight for you in Delta airlines with fare 100, shall I book your ticket?

USER: Please book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1003.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.