You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I need to travel to EWR for music concert, can you please help me to reserve ticket from DFW?

ASSISTANT: Sure, can you please let me know your dates of travel?

USER: Sure, my travelling dates are from Nov, 30 to Dec, 02.

ASSISTANT: May I know your name please?

USER: Sure, my name is Katherine Garcia here.

ASSISTANT: Do you have any other specifications please?

USER: Yes, flight has to be with a single connection with economy class.

ASSISTANT: Ok, please wait for a moment.

USER: I need to return at afternoon.

ASSISTANT: Sorry Garcia, there is no flight found as per your travelling details.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome.