You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Me and my family members are planning to visit Houston Zoo at Houston. Could you please help me with booking?

ASSISTANT: Sure, kindly mention your travel dates?

USER: My journey starts on 06/25 and return on 06/27.

ASSISTANT: Can you please provide me your airport codes?

USER: My origin point is CA-LAX and destination point is TX-AUS.

ASSISTANT: May I know your name?

USER: I am Michelle Gonzalez.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, no issues.

ASSISTANT: Thanks for reaching us, have  good day.

USER: Thanks for your service.