You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am looking for a flight ticket under the price 200 to reach DFW, please check the availability of flight.

ASSISTANT: Sure, may I know your travelling dates please?

USER: Sure, I will go on 04/10 and back on 04/12.

ASSISTANT: Please share me your origin airport code?

USER: I would like to catch my flight from SEA airport.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Melissa Walker. Please ensure that my price limit is 200.

ASSISTANT: Thank you Melissa, we found a flight on your details with airline JetBlue, flight number: 1015. Shall I proceed for booking?

USER: Sure, book it if it is with single connection.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your valuable service.

ASSISTANT: Thanks for choosing us.