You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Cynthia Roberts.

ASSISTANT: How can I help you?

USER: For my college vacation, I want to visit JFK. Can you book my tickets from LAX?

ASSISTANT: Could you please help me with your travelling dates?

USER: I would like to travel on 06/29 from LAS and return on 07/01 from OAK. Make sure my connection should be 1.

ASSISTANT: I am sorry there are no flights with your requirements.

USER: That's fine.

ASSISTANT: Thank you for approaching us.

USER: Thank you for spending your time in talking to me.