You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Can you reserve me a ticket from IAD to LGA?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My journey dates are Feb 13 to 15.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight in economy class.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: I am Ruth Martinez.

ASSISTANT: We found a connecting flight 1004 from United airlines with a fare 300.

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.