You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Lisa Williams here.

ASSISTANT: How may I help you?

USER: Reserve a flight ticket for me that is from HOU to JFK.

ASSISTANT: Sure, I can help you. May I know the dates of your journey?

USER: My preferable dates for travel are 09/01 to 09/03.

ASSISTANT: I found a flight in Delta airlines with a fare of 200 and there is a 1 halt, can I confirm your ticket?

USER: Sure, you can confirm the flight ticket.

ASSISTANT: Ok, the ticket is confirmed in 1002 flight.

USER: Thank you.

ASSISTANT: Welcome.