You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to meet my friend as he is unwell, can you please help me to book the flight ticket from ATL to OAK?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you provide me your travelling dates?

USER: I want to depart on 08/16 and also book the return ticket on 08/18.

ASSISTANT: May I know your name?

USER: My name is Jessica Allen.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there is no flights found on your requested details.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for choosing us.