You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I am Rebecca Lee, I want to book a flight ticket from LAS to AUS, can you help me with booking?

ASSISTANT: Sure, on which dates would you like to travel?

USER: I will fly on Nov 11 and recur on Nov 13.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other requirements?

USER: My return time is evening.

ASSISTANT: Ok, please wait.

USER: Sure, I need a connecting flight.

ASSISTANT: Ok. Sorry, there were no flights found with your given requirements.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for contacting us.