You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Betty Turner here.

ASSISTANT: Turner, how may I help you?

USER: I want to visit Los Angeles with my family, so please book my ticket from IAD to LAX.

ASSISTANT: Turner, can you please share me your travelling dates?

USER: Ok, my trip dates are 11/05 and 11/07.

ASSISTANT: Sure, please wait for a while.

USER: Ok, carry on.

ASSISTANT: There is a flight with Southwest and the ticket cost is 100. Shall I proceed for booking the ticket?

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket is booked with the flight number 1011.

USER: Thank you.

ASSISTANT: Thank you Turner for contacting us.