You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to AA agency.

USER: I am Thomas Nelson.

ASSISTANT: How may I help you, Nelson?

USER: Can you help me with booking a flight ticket?

ASSISTANT: Sure, I am here to help you with that only.

USER: I need to go for a round trip to PHL for meeting my business partner.

ASSISTANT: That's cool, may I know your travel dates?

USER: Sure, I would like to go on 02/21 and return back on 02/23.

ASSISTANT: Fine, can you provide me your source airport code?

USER: It's PHL.

ASSISTANT: Well, give me few seconds to check the flight availability.

USER: Sure, take your time to check.

ASSISTANT: JetBlue airline is providing service on that route with number 1002, ticket fare is 100 and having 1 connection. Is it ok for you?

USER: Yes, it is ok for me.Book it.

ASSISTANT: Your ticket has been booked, have a safe flight.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.