You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: Emily Wright here. I was invited as a guest for a farewell function in a college at Oakland CA-OAK. Assist me in booking my flight ticket ticket from Dallas TX-DFW.

ASSISTANT: Please provide your travel dates?

USER: I want to start on 01/15, my return date is on 01/17.

ASSISTANT: Ok. Connecting flight can be booked with airline UA for price 100. Shall I book a ticket?

USER: You can proceed this airline with a economy class flight.

ASSISTANT: Your ticket is booked. Flight number is 1016.

USER: Thank you.

ASSISTANT: Thank you.