You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Emma Taylor here.

ASSISTANT: Nice to meet you, Taylor.

USER: I am planning to travel a round trip, can you help in booking a ticket?

ASSISTANT: Can you please mention your source and destination airports codes?

USER: Firstly, I like to leave on 11/10 to 11/12. My airport codes are DCA to DCA.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: I find a flight with connection is 1 of cost 100, can I proceed with this?

USER: Yes please.

ASSISTANT: Your booking is done with airline AA and number 1016.

USER: Thank you for helping me in booking.

ASSISTANT: Thank you for your cooperation.