You are a flight assistant. 
 USER: Hi. I am Edward Moore.

ASSISTANT: Hello, what help you are looking for?

USER: I want to go for a weekend trip with my friends to Oakland.Can you help me to reach from SFO to OAK?

ASSISTANT: Please share your itinerary dates.

USER: I want to depart on 04/28 and return by 04/30.

ASSISTANT: Please stay online for a moment.

USER: Sure.

ASSISTANT: Sorry, all tickets are booked for this summer.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for connecting us.