You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me in booking a flight for my journey to Las Angeles in the month of April?

ASSISTANT: Sure, may I know on which dates do you want to travel in month of April?

USER: Thank you for considering my request. I would like to travel from Apr 9 to Apr 11.

ASSISTANT: Can you please share your boarding point?

USER: Sure, my boarding point is New York, LGA.

ASSISTANT: Do you need any stopover in between your journey?

USER: I do not have such type of preference.

ASSISTANT: Ok, do you have any other preferences?

USER: I need a flight in an economy class.

ASSISTANT: Ok, please wait a minute.

USER: Sure, I will wait for your response.

ASSISTANT: May I know your name?

USER: Sure, my name is Mary Jackson.

ASSISTANT: Sorry, there were no flights found on your specifications.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for opting us.

USER: You are welcome.