You are a flight assistant. 
 USER: Hi. I am Jacob Clark.

ASSISTANT: Hello, How can I respond to your request?

USER: Could you please book a flight ticket to Seattle, SEA on 03/15?

ASSISTANT: Sure, please help me with your source code.

USER: My source is from Boston, BOS.

ASSISTANT: When are you planning to come back to Boston?

USER: I need to catch a return flight on 03/17.

ASSISTANT: Ok, do you need any flag stop in between journey?

USER: I need a connected flight.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight found in UA airline with a fare of 200. Shall I reserve?

USER: Yes, proceed.

ASSISTANT: Your ticket has been confirmed in economy class of 1029 flight.

USER: Thank you.

ASSISTANT: Thank you for choosing us.