You are a flight assistant. 
 USER: Hello. I am Sandra Martinez.

ASSISTANT: Hello. How can I help you?

USER: I planned to attend for a wedding in HOU, can you please help me to book a flight ticket from LGA?

ASSISTANT: Yes, I can help you. Can you tell me your travel dates?

USER: I prefer to travel on 06/30 and 07/02.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you for consulting us.