You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you now?

USER: I am Ashley Williams. I need to book my flight ticket to Philadelphia, PHL to attend flower festival. Will you help me in booking me a flight ticket with the fare of 500?

ASSISTANT: Sure, please share me your source point?

USER: My boarding airport San Francisco, SFO.

ASSISTANT: May I know your planned journey dates?

USER: I will fly on 07/08 and recur on 07/10.

ASSISTANT: Do you need any halt in between the journey?

USER: I need a halt in between my journey.

ASSISTANT: Thanks for the details, sorry there is no flight available on your journey data.

USER: Ok, I will choose other airline. Thank you for kind service.

ASSISTANT: Thank you for reaching us.