You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I help you today?

USER: I am Patrick Rodriguez. Can you help me in booking a flight ticket from SFO to DCA?

ASSISTANT: Sure, we are glad to help you. Please help me with your travelling dates.

USER: I want to fly on May 27 and return on May 29.

ASSISTANT: Ok, do you need any stopovers in between journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Are you comfortable with economy class?

USER: Yes.

ASSISTANT: Thanks for providing details, we are regret to inform you that, no flights are available on your journey routes because of bad weather conditions.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for availing us.