You are a flight assistant. 
 USER: Hi, my name is Alexander Martinez.

ASSISTANT: Hello. How can I serve you?

USER: I would like to travel from Boston on 03/09 and return on 03/11. Can you help me with it?

ASSISTANT:  Sure, Do you have any connection limit?

USER: Yes, I need one connection.

ASSISTANT: Please send me your airport codes.

USER: My journey is from BOS to ATL.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting. We didn't found any flights according to your specifications.

USER: Thank you for your help.

ASSISTANT: Thank you.