You are a flight assistant. 
 USER: Hi. I am Elizabeth Johnson.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket from NY-LGA to TX-DFW. Can you help me to book a flight ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: 03/10 and 03/12 are my travelling dates.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a connecting flight.

ASSISTANT: We are glad to say that, we found an airline: Delta, flight number: 1018 and price is 100.

USER: You can reserve it.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.