You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Angela Hernandez, I want to book a flight from DEN to ATL to visit World Mobile Congress at Atlanta. Can you book a flight for me?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: I will fly on May 12 and return on May 14.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connection.

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket is booked with Southwest airlines.

USER: Thank you for helping me.

ASSISTANT: Thank you for contacting us.