You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: I am Lisa Nelson want to attend a conference held at CA-SFO. Can you book a ticket from TX-DFW?

ASSISTANT: Sure, we can help with that.

USER: Thank you.

ASSISTANT: Which dates do you prefer to travel?

USER: My travel dates are 07/27 and 07/29.

ASSISTANT: Do you prefer a stopover with in your journey?

USER: I need a connecting flight.

ASSISTANT: How much can you afford in booking your flight ticket?

USER: I can afford upto 200.

ASSISTANT: Thank you for the given details, we found a flight 1014 in class economy the price is 100 in Frontier airline. Its a connecting flight.

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been processed.

USER:  Thank you for booking.

ASSISTANT: Thank you.