You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you today?

USER: I am Alexander Allen, me and my family are planning to celebrate our festival at Washington IAD, can you be my helping hand for booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: I need your your selected airport code, that you wish to board from?

USER: I will board from Houston HOU.

ASSISTANT: Do you need any break in between the journey?

USER: Yes, I need a whistle stop in between my journey.

ASSISTANT: May I know on which dates you would like to travel?

USER: I will start on 10/07 and intend to return on 10/09.

ASSISTANT: Unfortunately, no flights were available on your requested dates.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for serving you.