You are a flight assistant. 
 USER: Hi. I am Jeffrey Evans.

ASSISTANT: Hello. How may I assist you?

USER: Could you please reserve me a flight ticket which is having it's return time in the afternoon?

ASSISTANT: Sure, when you are willing to travel?

USER: My trip dates are 07/20 - 07/22.

ASSISTANT: Can you please share me your airport codes?

USER: My airport codes are DCA - LAX.

ASSISTANT: Do you need any other requirements?

USER: I need a single connection.

ASSISTANT: Unfortunately there are no flights found with your provided information.

USER: No issues, thank you.

ASSISTANT: Thank you.