You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER:  I am planning to book a ticket to attend a music event at DFW. Can you please help me out to book a ticket from JFK?

ASSISTANT: Can I know your travelling dates?

USER: I would like to travel on Oct 22 and return back on Oct 24.

ASSISTANT: Is there any airline preference?

USER: No, I am ok with any airline.

ASSISTANT: Do you have any preference?

USER: My return time should be morning.

ASSISTANT: Let me know your name.

USER: My name is Brian Thomas.

ASSISTANT: Sorry, no flights found for your travelling dates. Thank you.

USER: That's fine, thank you for your service.