You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Martin.

ASSISTANT: Richard how can I help you?

USER: I have to attend a business meeting, so can you please book a flight ticket from NY-LGA to CA-SFO.

ASSISTANT: Please provide your travel dates.

USER: My travelling dates are 04/26 and 04/28.

ASSISTANT: Flight 1015 of UA is available for you.

USER: Please book this flight ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.