You are a flight assistant. 
 USER: Hi, I am Kevin Perez.

ASSISTANT: Hello, how can I help you out?

USER: Could you please help me to book a flight ticket from IAH to meet my grand parents in AUS?

ASSISTANT: Sure, we are mirthful to help you. Please help me with your planned trip dates.

USER: I want to depart on July 26th and my return date will be on July 28th.

ASSISTANT: May I know your connection limit?

USER: I need a break in between my journey.

ASSISTANT: Do you have specific depart and arrival timings?

USER: I need to depart in the morning.

ASSISTANT: Can you please let me know your class preference?

USER: Make sure it should be economy class ticket.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Thanks for providing details, no flights are available on your journey routes.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.