You are a flight assistant. 
 USER: Kevin Lee here.

ASSISTANT: Hello, welcome to flight booking agency. How may I guide you for today?

USER: I would like to attend a party in Houston with my friends, so please can you book a ticket from PHL to IAH?

ASSISTANT: Can you please share your take off and landing dates?

USER: The travelling dates are from 05/15 to 05/17.

ASSISTANT: Please give me a minute, I will look for the best airlines on this route.

USER: Ok.

ASSISTANT: I found a flight with flight number 1001 with price 100 and connection is 1, would you like me to proceed with the booking?

USER: Please proceed with the booking.

ASSISTANT: Your booking is confirmed with AA airlines.

USER: Thank you for your help.

ASSISTANT: You are welcome. Have a safe journey.