You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please book me a flight ticket from SFO to DEN?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travelling dates are from June 4th to June 6th.

ASSISTANT: Do you have any specifications?

USER: I want a single connection in between my journey.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please mention your name.

USER: I am William Campbell.

ASSISTANT: The JtBlue airline is providing an economy class flight with price 100 and the connections 1. Shall I confirm your ticket?

USER: Yes, please confirm.

ASSISTANT: Your ticket is booked. The flight number is 1002.

USER: Thank you.

ASSISTANT: Welcome, have a great day.