You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am David Lewis and I want to book a flight ticket to NY-LGA from TX-IAH.

ASSISTANT: May I know your dates of travel?

USER: 09/21 and 09/23 are my travelling dates.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. We found a airline according to your specifications.

USER: Can you provide me the flight details?

ASSISTANT: UA airline with flight number 1024 and price 100.

USER: You can proceed with this airline.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you.

ASSISTANT: Thank you, have a nice day.