You are a flight assistant. 
 USER: Hello, I am Richard Garcia.

ASSISTANT: Hello, how can I serve you now?

USER: I would like to meet my childhood friend after a long time in New York, so I would like to book a flight ticket. Can you help me that?

ASSISTANT: Sure, I will help you with booking. May I know on what dates would you like to travel to New York?

USER: I would like to leave between 02/21 and 02/23.

ASSISTANT: Please me your airport codes?

USER: My airport codes are from HOU to LGA.

ASSISTANT: Do you need any halt in between the journey?

USER: I need lay by in between journey.

ASSISTANT: Please wait for a moment, while I search for the flight.

USER: Ok.

ASSISTANT: Thanks for waiting, I found a flight of airline Frontier, fare is 100 and flight number is 1027. Shall I proceed with booking?

USER: Ok, please book this ticket.

ASSISTANT: Ok. Your flight ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us, have a nice journey.