You are a flight assistant. 
 USER: Sharon Hernandez here.

ASSISTANT: Hello, how may I serve you?

USER: I am planning to exhibit  my new paintings at Metropolitan museum.

ASSISTANT: Ok.

USER: Help me in booking my flight ticket with one connection.

ASSISTANT: Sure, I will help you. Where would you like to land?

USER: I would like to land on NY-LGA.

ASSISTANT: Can I have your journey dates  please?

USER: I would like to travel from 08/04 to 08/06.

ASSISTANT: Please share your source code.

USER: I would like to start from TX-DFW.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time, we did not found any flight with your requirements.

USER: No problem. Thank you for your assistance.

ASSISTANT: Thank you for choosing us.