You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jerry Jones.

ASSISTANT: How can I assist you?

USER: I am planning to attend music concert at SFO, can you please help me with booking a flight ticket from DFW?

ASSISTANT: Yes, can you share me your travelling dates?

USER: Sure, I would like to take off on Mar 12 and return on Mar 14.

ASSISTANT: Give me a moment.

USER: I would like to depart during morning time.

ASSISTANT: Sorry to inform you that there are no flights found on your requested criteria.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.