You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Sarah Turner.

ASSISTANT: How may I help you for the day?

USER: I would like to travel from LAX to LGA, could you help me in booking the ticket?

ASSISTANT: Sarah Turner, can I know your travel dates?

USER: Sure, It's from 12/05 to 12/07.

ASSISTANT: Wait for a moment till I check with availability.

USER: Ok.

ASSISTANT: I couldn't find any flights available as per your requirements, sorry for the inconvenience.

USER: That's ok.

ASSISTANT: Thanks for contacting us. Have a great day.

USER: Thank you for helping me out.