You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Kathleen Thompson. I am planning to travel from DFW to LGA. Can you please help me to book a flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates will be on 11/08 to 11/10.

ASSISTANT: How much you can afford for this ticket?

USER: Fare is 500.

ASSISTANT: Sorry there is no flight on your details.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you.