You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joshua Clark.

ASSISTANT: How can I help you Clark?

USER: Can you help me in booking the ticket from DFW to DTW?

ASSISTANT: Please provide me your preferred dates of journey.

USER: My planning dates are from 05/18 to 05/20.

ASSISTANT: Flight-1003 of Hawaiian airlines is available for you.

USER: That's great, please proceed.

ASSISTANT: Your ticket is confirmed successfully.

USER: Thank you for your help.

ASSISTANT: You are welcome.