You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Cynthia Carter, I plan a trip to Houston Space center. Can you book a direct flight to Houston?

ASSISTANT: Sure, may I know your journey dates?

USER: I will fly on 03/11 and return on 03/13.

ASSISTANT: Can you please share your airport codes.

USER: My source point is NY-EWR and destination is TX-IAH.

ASSISTANT: Do you have any specifications?

USER: My budget is 5000 for flight ticket.

ASSISTANT: You have a direct flight with airline Frontier and flight number is 1011 and price is 100. Can I reserve your seat?

USER: Sure, you can.

ASSISTANT: Your reservation is done.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us, have a safe journey.