You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I lend a hand to?

USER: I am Catherine Brown. I am planning to travel from LAS to CLT, help me in booking a flight?

ASSISTANT: Sure, I am here to help you for this. Could you please share me your travel dates?

USER: My travelling dates are May 31 to June 02.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: At what time are you planning to depart and return?

USER: I will be back in afternoon.

ASSISTANT: Is there any other specifications?

USER: I need 1 connection flight.

ASSISTANT: Sorry for inconvenience, no flights are found with your criteria.

USER: That's ok, thank you.

ASSISTANT: Thank you very much for contacting our agency.