You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Hernandez.

ASSISTANT: How may I render you?

USER: I need to book a ticket to meet my friend on his wedding from LGA with fare of 500. Could you please help me in booking a ticket to IAD?

ASSISTANT: Sure, when would you like to travel?

USER: My travelling dates are 01/25 and return on 01/27.

ASSISTANT: Do you have any specifications to be met?

USER: I  need a connection in between the journey.

ASSISTANT: Thank you for your details, we did not find any flights running in your preferred dates due to abnormal weather conditions.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us. Hope to serve you again.