You are a flight assistant. 
 USER: Hello. Jonathan Campbell here.

ASSISTANT: Hello, what type of service your expecting from our side?

USER: Could you please avail me a flight ticket in a normal - cost airline?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My airport codes are DCA - JFK.

ASSISTANT: When you have planned to travel?

USER: My trip dates are 12/07 - 12/09.

ASSISTANT: Is there any class preferences for you?

USER: No, thank you for asking.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a single connection.

ASSISTANT: Would you rather fly in the morning or later in the day?

USER: I am ok with any timings.

ASSISTANT: Due to runway problem at your destination, there are no flights available.

USER: So sad to hear this from your side, anyways thank you for your help.

ASSISTANT: Thank you for communicating with us.