You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicholas Robinson.

ASSISTANT: How can i help you?

USER: I am planning to book a ticket with 0 connection, can you please help me out to book a ticket for me?

ASSISTANT: Sure, your travelling dates and your airport codes please?

USER: My airport codes are IAD to LAS.

ASSISTANT: Your travel dates please?

USER: I would like to travel on 02/07 and return back on 02/09.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Here is a flight ticket with fare 100 and AA as airline.

USER: Please proceed the booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.