You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Wilson.

ASSISTANT: How can I render you today?

USER: I need to attend the party on 01/14 and back to my place on 01/16. Could you please help me in booking a ticket on those dates?

ASSISTANT: Sure, may I have your price limit?

USER: 1000 is my price limit.

ASSISTANT: Ok, Kindly assign your airport codes?

USER: My travelling airport codes are CLT and LGA.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a connecting flight in UA airlines with a fare of 400 and the flight number is 1021. Shall I porceed?

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us, have a great day.