You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Emily Martin here.

ASSISTANT: Emily Martin, how may I render you?

USER: Can you please book me a flight from AUS to reach OAK?

ASSISTANT: Sure, please provide your itinerary dates.

USER: Sure, my planned trip dates are Oct 31st and Nov 2nd.

ASSISTANT: Do you have any specifications?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: My depart time must be in the morning.

ASSISTANT: Please give me a moment.

USER: Ok, sure.

ASSISTANT: Sorry, no flights are available in the morning.

USER: Ok, not a problem. Thanks for the information.

ASSISTANT: Thank you for reaching us.