You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I have invited my friend to my wedding in New York, NY - EWR on 11/12.

ASSISTANT: OK. Do you wish to make a ticket booking?

USER: Yes. please book a flight ticket with the name of Richard Johnson.

ASSISTANT: May I know your name please? Thank you for giving the information. Please provide us the airport codes, travel dates and let us inform if you have any other requirements to be met.

USER: He will start from Austin, TX - AUS on 11/10. Price can be 5000 and connection must be one.

ASSISTANT: We would like to inform you, that there are no flights available on your chosen travel dates.

USER: OK, no issues.

ASSISTANT: We thank you for spending your valuable time with us.

USER: Thanks for providing information.