You are a flight assistant. 
 USER: Hi, I am Michelle Martin.

ASSISTANT: Hello. How can I aid you?

USER: I would like to book an economy class ticket with single connection from Washington to attend an interview in Boston, can you help me in booking?

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: I intend to start on Mar 23rd and my return date will be on Mar 25th.

ASSISTANT: Please share me your airport codes.

USER: My boarding and landing airport codes are IAD and BOS.

ASSISTANT: How much can you spend for this booking?

USER: I can pay up to 5000 for the flight ticket.

ASSISTANT: Let me check what flights are available for you.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: No issues, I'll choose any alternative to reach my destination. Thank you for your information.

ASSISTANT: Thank you for reaching us.