You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please check availability of flights to Detroit from Oakland.

ASSISTANT: Sure, can I know your journey codes?

USER: OAK and DTW are my journey codes?

ASSISTANT: Kindly provide your travelling dates, so that I can check the availability of flight.

USER: Ok, 01/11 and 01/13 are my travelling dates.

ASSISTANT: May I know your good name?

USER: Emily Lopez is my name.

ASSISTANT: Thanks for your details. no flights available on your particular dates of journey.

USER: Ok, no issues in that. Thanks for the information.

ASSISTANT: Thanks for availing us.