You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Lisa Parker here.

ASSISTANT: How can I give some guidance to you from my side?

USER: Could you book my ticket in a direct flight?

ASSISTANT: Sure, I can find a flight as per your request. I need your travel dates, can you please provide that one?

USER: My itinerary dates are 08/11 and 08/13.

ASSISTANT: May I know your perspective airport codes?

USER: My airport codes are IAH and CLT.

ASSISTANT: I can search for the flight and get back to you with the flight details if there is any flight obtained on your details.

USER: Sure.

ASSISTANT: I found a flight in Frontier airlines with a ticket fare of 100 and there is a 1 stop and go in your trip in 1024 flight, can I proceed with ticket booking?

USER: I need a direct flight.

ASSISTANT: I have checked again in our booking portal and it is showing that no flights are found in 0 halt to book the ticket.

USER: Thank you for checking.

ASSISTANT: Our work is to help you and thank you for reaching us, have a nice day.