You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to book a flight ticket from LGA to HOU?

ASSISTANT: May I know your travel dates?

USER: Ok, please book a ticket for the dates Mar 29 and Mar 31st.

ASSISTANT: Do you have any class preferences?

USER: Please book a connecting flight. Yes, I need a economy class flight.

ASSISTANT: Is there any other specifications?

USER: Yes, I prefer only normal-cost airlines.

ASSISTANT: United Airlines providing the connecting flight on this route and the fare of 100.

USER: Yes, please book a ticket for the flight provided.

ASSISTANT: May I know your name please?

USER: My name is Jennifer Jackson.

ASSISTANT: Your ticket booking is generated for the flight 1004.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.