You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Hall Here.

ASSISTANT: How can I help you Hall?

USER: I would like to meet my friend in Dallas and Fort Worth. Will you please help me in booking a flight ticket from IAD to DFW?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates are from 08/08 to 08/10.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Flight 1005 of Southwest airlines is available for you with 1 connection.

USER: That is fine, please proceed with booking.

ASSISTANT: Hall, your ticket is booked.

USER: Thank you for your help in booking.4.

ASSISTANT: You are welcome.