You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: George Perez here.

ASSISTANT: Nice to meet you George.

USER: Actually, I am looking for a flight having single connection because my friend also booked the same flight that I want to travel, so can you please help me out with booking of a flight ticket from Oakland on 06/08?

ASSISTANT: Sure, I am happy to help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Can you please mention your travel dates for booking flight ticket?

USER: Sure, I am already mentioned my departure date and also please book my return ticket on 06/10.

ASSISTANT: May I know your preferable airport code names?

USER: Sure, my nearest genesis airport code is OAK and my terminus airport code is HOU.

ASSISTANT: Please wait a moment, I will check flight availability.

USER: Ok, take your time.

ASSISTANT: Sorry for the inconvenience no stopover flights available in this route as per your requested dates. Would you like to travel direct flight?

USER: Oh! So sad to hear, Anyway, I will choose another alternative to go there.

ASSISTANT: You are welcome.

USER: Thank you for the information.