You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a ticket from EWR to AUS to attend workshop, can you help me in booking?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: I am departing on Mar 01 and return on Mar 03.

ASSISTANT: Do you have any preferences?

USER: I do not have any other preferences.

ASSISTANT: Ok, please provide the name.

USER: My name is Emily Martin.

ASSISTANT: Sorry, there is no available on your requested dates.

USER: That's ok, thank you for your information.

ASSISTANT: You are welcome, have a nice day.