You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What kind of service you are expecting from us?

USER: I want to attend a marriage in Houston, can you assist me in booking a ticket?

ASSISTANT: Sure, I will assist you in booking the flight ticket.

USER: Thank you.

ASSISTANT: Can you please tell me when you want to travel?

USER: I want to travel on 01/27.

ASSISTANT: Ok,do you want any return ticket, if so please mention the date?

USER: Yes, I want to to book a return ticket also it is on 01/29.

ASSISTANT: Ok, can you please mention the takeoff and landing airport codes of your journey?

USER: My take off code is EWR and landing code is HOU.

ASSISTANT: Ok, meanwhile may I know your name please?

USER: Janet King here.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, I need a flight with connection limit as 1.

ASSISTANT: Sorry Janet, due to heavy bookings there are no flights found on your requested dates.

USER: No problem, I will try for another alternative way to reach my destination.

ASSISTANT: Sorry for the inconvenience, thank you for approaching us.

USER: Thank you for your quick information.

ASSISTANT: You are welcome.