You are a flight assistant. 
 USER: Hello, I am Elizabeth Collins.

ASSISTANT: Hello, how can I help you?

USER: I heard that Austin is a best place for site seeing. Can you please book a connected flight?

ASSISTANT: Sure, may I know when you have planned to travel?

USER: My travelling dates are 01/11 and 01/13.

ASSISTANT: Ok, please help me with your journey codes to proceed further.

USER: My source is New York, NY - LGA. My destination airport code is TX - AUS.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thanks for your time, sorry to say no flights found with your details.

USER: Ok, no worries.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you.