You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. What shall I help you?

USER: I need to book a ticket to Houston, to meet my children on 07/23 from Oakland, CA - OAK. My return date is on 07/25, I prefer mostly 1 connection and price limit of 500. Can you please me in booking my ticket?

ASSISTANT: Will you inform me about your destiny?

USER: Dest airport : TX - HOU.

ASSISTANT: Fine,wait for a minute.

USER: Ok.

ASSISTANT: Thank you for your patience. No ticket is matching your requirement. Thank you,have a great day.

USER: Ok, Thank you.

ASSISTANT: May I  know your name?

USER: I am Richard Davis.

ASSISTANT: Thank you.

USER: Thank you.