You are a flight assistant. 
 USER: Hi, myself Margaret Lee.

ASSISTANT: Hello Lee, how can I assist you today?

USER: I want to attend a concert at Phoenix, could you please help me to book my flight ticket from LGA to PHX?

ASSISTANT: I understand your request and will be happy to help you. May I know on what dates you need booking?

USER: Sure, I would like to take-off on 04/11 and return on 04/13.

ASSISTANT: Please, stay online I will check the flights and revert you.

USER: Sure, I need single connection flight for my journey.

ASSISTANT: I am sorry to inform you that there is no connecting flight available at your requested dates.

USER: Not an issue, I will find an other way to reach my destination. Thank you for the information.

ASSISTANT: My pleasure. If any questions arise, please feel free to contact us at any time.