You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in booking on Feb 20 to Feb 22, as there is a business meeting to attend?

ASSISTANT: Yes, I am here to help you.

USER: Ok.

ASSISTANT: May I know your airport codes please?

USER: My source is SFO and destination is IAD.

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

USER: I am ok with any flight.

ASSISTANT: Ok, please let me know if you have any other specifications.

USER: I prefer a normal-cost airline.

ASSISTANT: May I know your name for further process?

USER: I am Janet Davis.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry no flights found with your details.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us, have a good day.