You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emma Moore.

ASSISTANT: How may I help you out?

USER: I am planning to visit New York LGA from San Francisco SFO. Can you find a flight ticket for me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, my planned trip dates are on July 02 and return on July 04.

ASSISTANT: Do you have any specifications?

USER: Yes, I want to depart in the morning time.

ASSISTANT: Do you need any class preference?

USER: Yes, I need an economy class.

ASSISTANT: Ok,  please wait a moment.

USER: Yes, I need a single connecting flight.

ASSISTANT: Sorry Emma Moore, no flight is available to you on your dates.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: Thank you for choosing us, have a good day.