You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Helen Roberts, can you help me to book a flight from DFW to LAS?

ASSISTANT: Sure, could you please provide your willing dates to travel?

USER: My travelling dates are 05/26 and 05/28.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Ok, there is a flight 1011 in Southwest airline matching your details with price 100. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: You are welcome.