You are a flight assistant. 
 USER: Hi, this is Catherine Jones.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking a flight from IAD to LAX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am planning to book a flight on Oct 1st to 3rd.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in morning time.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: No worries, thank you.

ASSISTANT: Thank you for reaching us.