You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you the best today?

USER: I am Christine Gonzalez, I am planning to visit Austin for short vacation with my friend. Can you book a connecting flight for me?

ASSISTANT: Sure, to book a flight ticket can you please share me your travelling codes?

USER: I will fly from Oakland, CA-OAK to TX-AUS airport.

ASSISTANT: Kindly assign your departure date and arrival date?

USER: I like to depart on 03/24 and return on 03/26.

ASSISTANT: Just wait a moment, let me check and revert to you.

USER: Sure.

ASSISTANT: We are sorry to inform you that there is no flight found with your matching schedules.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.