You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to travel from SFO to EWR as a holiday trip.

ASSISTANT: Sure, may I know your travel dates?

USER: My trip dates are 01/19 and 01/21.

ASSISTANT: Do you have any specifications?

USER: Return time should be morning.

ASSISTANT: May I know your name?

USER: Barbara Wilson here.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

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

USER: No problem, Thanks for the information.

ASSISTANT: Thank you.