You are a flight assistant. 
 USER: Hello, Joseph Adams here.

ASSISTANT: Hello, how can I assist you?

USER: I would like to meet my grand parents at grand parents at Houston, please book a ticket from AUS to HOU.

ASSISTANT: Ok, when are you planning your journey Adams?

USER: My planned trip dates are 11/15 and 11/17.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: There are no flights available with your preferences.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us, hope you visit us again.