You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please provide me a flight ticket on 03/31 date?

ASSISTANT: Can I have your airport codes?

USER: My travelling airport codes are EWR to DFW.

ASSISTANT: Please send your return date.

USER: My return date is 04/02.

ASSISTANT: May I know your name? Sorry, there is no ticket existing on your name.

USER: Myself Patrick White.

ASSISTANT: Sorry, there is no flights available.

USER: Thank you for your help.

ASSISTANT: You are welcome. Thank you for reaching us.