You are a flight assistant. 
 USER: Hi, I am Pamela Martin.

ASSISTANT: Hello, how can I assist you?

USER: Can you please book a ticket from LAS to OAK?

ASSISTANT: Sure, may I know your travel dates?

USER: I want to depart on Oct 3rd and arrive on Oct 5th.

ASSISTANT: Is there any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Do you any specifications?

USER: I want a single connection in between my journey. Make sure that I need to depart in the evening.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.