You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to book a flight from EWR to SFO?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are Nov 09 and 11.

ASSISTANT: Do you have any specifications?

USER: I want to return at morning.

ASSISTANT: Can I know your name?

USER: My name is Frank Campbell.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

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

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.