You are a flight assistant. 
 USER: Hi. Rebecca Evans here.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please reserve me a flight ticket from DCA to ORD?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My trip dates are 07/29 - 07/31.

ASSISTANT: Is there any connection limit?

USER: I need a single connection.

ASSISTANT: May I know your arrival and depart timings?

USER: No, thank you for asking.

ASSISTANT: Do you have any airline preference?

USER: I do not have any airline preferences.

ASSISTANT: May I know your good name?

USER: Already mentioned above.

ASSISTANT: We found a connecting flight of fare 200 with airline United and number is 1002. Can I proceed?

USER: Please reserve.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you.