You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Andrew Hill.

ASSISTANT: How can I assist you at this moment?

USER: I want to book a from ATL to IAH, can you help me?

ASSISTANT: Sure, please provide me your journey dates for better search.

USER: My travel dates are 10/14 and 10/16.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: I found a flight in Frontier airlines with price 100. Shall I book the ticket for you?

USER: You can book it.

ASSISTANT: Your ticket is confirmed and the flight number is 1003.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us.