You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a flight with 200 price limit?

ASSISTANT: Sure, we are here to help you. Can you share me your airport codes?

USER: My preferred airport code are BOS and BOS.

ASSISTANT: Let me know when your willing to travel?

USER: My trip dates are 12/13 and 12/15.

ASSISTANT: May I know your name to book a flight ticket?

USER: My name is Jennifer Baker.

ASSISTANT: Do you need any flag stops or direct flight in between your journey?

USER: I need a connecting flight from BOS.

ASSISTANT: Ok, wait for some time I will check the availability of flights and get back to you.

USER: Sure, take your time.

ASSISTANT: We found UA airline with connecting flight and number 1018 fare of 100. Shall I proceed for booking?

USER: Yes, proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for choosing us.