You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Joshua Jackson, can you please help me to book the flight ticket from DFW to LAX?

ASSISTANT: Sure, I can help you. May I know the dates of your journey?

USER: I have to visit my aunt's place on 01/29, so I will depart on 01/28 and also book the return ticket on 01/30.

ASSISTANT: Please give me a moment to find the flight.

USER: Sure.

ASSISTANT: Thank you for waiting. There are no flights that are moving to your location when I checked in our data base to book the ticket. Sorry for the trouble.

USER: Not an issue, I will find an other way. Thank you for checking.

ASSISTANT: Thank you for reaching us, have a nice day.