You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I would like to attend sister's marriage anniversary at Los Angeles, can you please reserve ticket from EWR to LAX?

ASSISTANT: May I know on what dates would you like to travel?

USER: Sure, my planned travelling dates are Oct, 03 and 05 respectively.

ASSISTANT: Do you prefer any connections?

USER: Yes, flight has to be with single connection with economy class.

ASSISTANT: May I know your specifications?

USER: Yes, I need to return at evening in my journey.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

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

ASSISTANT: Please share your name?

USER: Sure, my name is Gary Allen here.

ASSISTANT: Thank you.