You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Please book me a ticket from DFW to PHX, can you help me with it?

ASSISTANT: Sure, could you please share your travelling dates?

USER: My travelling dates are from 03/11 to 0. My return date is on 03/13.

ASSISTANT: Ok, please wait for some time.

USER: Ok.

ASSISTANT: There were no flights found on your requested dates.

USER: Fine, thanks for the information.

ASSISTANT: Can you please tell me your good name?

USER: I am William Baker.

ASSISTANT: Thank you for approaching us.