You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Eric Clark.

ASSISTANT: Ok.

USER: I would like to attend a flower festival at San Francisco, can you help me in  my booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are from 04/19 to 04/21.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from CLT to SFO.

ASSISTANT: May I know your price limit?

USER: My price limit is 500.

ASSISTANT: May I know your lay by's.

USER: I need a halt in my journey.

ASSISTANT: There are no flights found on your requested dates.

USER: Not an issue.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your reaching us, have a nice day.