You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Samuel Miller. I am planning to conduct a free medical camp in New York, so please book a flight ticket within a price limit of 200.

ASSISTANT: Sure, we are here to help you in booking. Can you share me your travelling dates to book a flight ticket?

USER: My departure day is 10/25, return day is 10/27.

ASSISTANT: Can you share me your preferable airport codes?

USER: My source and destination airport codes are TX - DFW, NY - LGA.

ASSISTANT: Ok, wait for a while.

USER: Sure.

ASSISTANT: We found UA airline with connecting flight and number 1028 fare of 100. Shall I confirm it?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for approaching us.