You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me in booking the flight ticket from LGA to LAX?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable dates of travelling?

USER: Dates are May 05 and May 07.

ASSISTANT: Do you have any connection limit?

USER: Connected flight required.

ASSISTANT: Any more specifications do you have?

USER: No other specifications needed for my journey.

ASSISTANT: May I know your name please?

USER: Mark Carter here.

ASSISTANT: Please wait a moment to check.

USER: Sure.

ASSISTANT: Unfortunately there are no flights running on your route with your required preferences.

USER: Not an issue. Thanks for checking.

ASSISTANT: Thank you for approaching us, have a great day.