You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kevin Green.

ASSISTANT: How may I help you?

USER: I am planning to visit Dallas to attend a meeting, can you please book me a ticket from LAX to DFW?

ASSISTANT: May I know your travel dates?

USER: My planned dates of journey are from 01/17 to 01/19.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Thank you for reaching us.

USER: Thank you for providing information.