You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I'm planning to go for HOU from LGA. Can you please help me to book my ticket on 08/18 and 08/20 dates?

ASSISTANT: Ok, may I know your date of travelling please? may I know your name please?

USER: Betty Williams is my name.

ASSISTANT: Mr.Betty Williams there is no flights found on your request. Thank you for reaching us.

USER: Ok, fine you are welcome.