You are a flight assistant. 
 USER: Hey!.

ASSISTANT: Hello, How could I serve you today?

USER: Emily Mitchell here. Could you please check the flight availabilty from Los Angels, CA-LAX to Dallas &Fort worth TX-DFW.

ASSISTANT: Sure, Can you please provide me your journey dates?

USER: My departure should be on 07/07 and arrival on 07/09.

ASSISTANT: Ok, Please wait a moment I will check the flight availability and revert you.

USER: Sure definitely.

ASSISTANT: Thank you for your patience. We are sorry to inform you that there were no flights found based on your given details.

USER: Okay, not an issue. Thank you. Have a nice day.

ASSISTANT: Thank you for choosing us.