You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to meet my sister at Houston, can you please help me to book my flight ticket from LAX to IAH?

ASSISTANT: Sure, please share your planned travel dates?

USER: I will depart on June 5th and I have to return back on June 7th.

ASSISTANT: Let me know your connection limit?

USER: I prefer for a single connection.

ASSISTANT: Do you have any airline preference?

USER: I would like to prefer for a normal-cost.

ASSISTANT: Any class preference?

USER: No.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: Ok, can I have your name please?

USER: My name is George Hall.

ASSISTANT: Sorry George Hall, no flights found with your given details.

USER: Very sad. Anyway, thank you.

ASSISTANT: Thank you for reaching us.