You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: Can you please help me in booking a flight ticket from ORD to LGA to attend a sports festival?

ASSISTANT: Sure, do you need a lay by in between the journey?

USER: Yes, I need it.

ASSISTANT: On which dates would you like to travel?

USER: My planned journey dates are from Mar 31 to Apr 2.

ASSISTANT: Ok, do you prefer business or economy class?

USER: I am ok with any class.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Ok, may I know your good name please?

USER: I am Eric Clark.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: We found a Delta Airlines with fare of 200 and a lay by in between the journey matches your schedule.

USER: You can confirm it.

ASSISTANT: Your ticket has been confirmed with flight number 1000.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.