You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Samantha Campbell.

ASSISTANT: By what way can I serve you now?

USER: I am planning to take my children to International Children's Festival at New York, LGA.

ASSISTANT: Ok.

USER: Can you please book a flight ticket within the fare of 200?

ASSISTANT: To move further, help me with your planned dates.

USER: My planned journey dates on 11/14 and 11/16.

ASSISTANT: What is your other airport code?

USER: My source point is Washington, IAD.

ASSISTANT: Sorry, there were no flights available due to having bad weather conditions.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.