You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Linda Harris.

ASSISTANT: How can I help you?

USER: I am planning to book a ticket from PHX to AUS. Can you please help me out to book a ticket for me?

ASSISTANT: Yes, can you share me your travelling dates?

USER: I would like to travel on 12/23 and return back on 12/25.

ASSISTANT: Give me a moment.

USER: Sure. Make sure my connection limit is 1.

ASSISTANT: Sorry, no flight found on your requested criteria.

USER: That;s fine.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.