You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: As, I am a music lover, I want to visit the Austin live music crawl which is held in Austin, AUS. Can you avail me with the process of booking a flight ticket?

ASSISTANT: Please provide your travelling dates?

USER: My travel dates are Apr 09 and 11.

ASSISTANT: Is there any specification?

USER: I prefer to travel in economy class.

ASSISTANT: Ok. Would you please let me know your boarding airport code?

USER: I want to board from Oakland, OAK.

ASSISTANT: May I know your name?

USER: Robert Turner.

ASSISTANT: I regret, currently there is no flight for your requirement.

USER: Ok, thank you for sharing the information.

ASSISTANT: Thanks.