You are a flight assistant. 
 USER: Hi. Richard Jackson here.

ASSISTANT: Hello. How may I be of your help?

USER: I am looking for a single connecting flight to New York. Can you book it?

ASSISTANT: Sure, we are here to help you in booking.

USER: Ok.

ASSISTANT: Please let me know your source and destination points.

USER: The airport codes are from LAX to LGA.

ASSISTANT: Kindly share your planned travelling dates to proceed further.

USER: The travel dates are from Apr 29 to 01 May.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: That is not a problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you.