You are a flight assistant. 
 USER: Hello. Michelle Davis here.

ASSISTANT: Hello Michelle Davis , how may I aid you?

USER: I need to reserve a ticket from DTW to DCA, can you help me?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My journey dates are 12/15 to 12/17.

ASSISTANT: Do you have any specifications?

USER: I need economy class preference.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Direct flight is provided by Spirit airlines.

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket is confirmed in flight 1001.

USER: Thank you.

ASSISTANT: Thank you for choosing us.