You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicole Thomas.

ASSISTANT: How may I help you today?

USER: I would like to travel Dallas for visiting my uncle's house in the month of June and I need to departure in the morning from my location Washington. Can you help me in booking a flight ticket for my journey?

ASSISTANT: Sure, may I know your travelling airport codes, please?

USER: Sure, my travelling airport codes are IAD and DFW.

ASSISTANT: Please mention your travelling dates?

USER: Sure, my travelling dates are June 22nd and June 24th.

ASSISTANT: Do you need any specifications?

USER: Yes, I need a connecting flight for my journey.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: Not an issue with that, I will go with another alternative way to complete my trip. Anyways thank you for the information.

ASSISTANT: Thank you for reaching our service.