You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a flight from LGA to HOU to meet my parents. Can you help me with booking?

ASSISTANT: Sure. Let me know your travelling dates.

USER: I will travel on June 5th and return on June 7th.

ASSISTANT: Do you have any preference?

USER: I want connecting flight and economy class flight.

ASSISTANT: Let me know your name.

USER: My name is Barbara Jones.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you.