You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I would like to travel in a connecting flight. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, My travelling dates are Nov 19 and Nov 21.

ASSISTANT: Can I know your airport codes too?

USER: My airport codes are LAS and AUS.

ASSISTANT: Do you need any specifications?

USER: I want to depart in the afternoon.

ASSISTANT: Can I know your other preferences?

USER: I do not have any other preferences.

ASSISTANT: Sorry, there are no flights found.

USER: No worries, thank you for the information.

ASSISTANT: Can I know your name please?

USER: I am Margaret Scott.

ASSISTANT: Thank you for reaching us.