You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am John Clark.

ASSISTANT: How can I aid you?

USER: I would like to book a ticket to Dallas, can you please help me out?

ASSISTANT: Sure, I will help you on that. Will you provide your travelling dates please?

USER: I am travelling on these dates 02/12 and 02/14.

ASSISTANT: Please mention your airport codes that you want to travel.

USER: I am flying from LAS to DFW.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a flight with price 100 and the connections 1 is available.

USER: Ok, you can proceed with this flight.

ASSISTANT: Your ticket is booked. The flight number is 1001 and the airline is Delta.

USER: Thank you for your services.

ASSISTANT: Welcome, have a great day.