You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Benjamin Anderson. I want to book a ticket from EWR to DFW, can you make a reservation please?

ASSISTANT: Sure, kindly share your travel dates.

USER: My travelling dates are on July 14 and July 16.

ASSISTANT: Do you have any connection preference?

USER: Yes, I need single halt.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, thank you for informing me.

ASSISTANT: Thanks for reaching us.