You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Amy Allen, want to travel from DCA to PHL. Can you please help me?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travel dates are from 12/29 to 12/31.

ASSISTANT: Do you have any specifications?

USER: I want normal cost airline.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting. The UA airlines providing an economy class flight with price 100 and the connections 1. Shall I confirm your ticket?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked. The flight number is 1018.

USER: Thank you so much.

ASSISTANT: Welcome, have a great day.