You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna White here.

ASSISTANT: How may I assist you today?

USER: I am looking for a flight from LAS to JFK. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My preferable journey dates are May 11 and May 13.

ASSISTANT: Do you have any class limit?

USER: No, I am comfortable with any class.

ASSISTANT: Is there any connection limit?

USER: Yes, my connection limit is 1.

ASSISTANT: Do you have any specification?

USER: My return time should be in Morning.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Not an issue, thank you for the information.

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