You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Christopher Anderson. I am planning to meet my colleagues who are staying in DFW, will you please aid me in making an airline reservation from EWR?

ASSISTANT: Sure, let me know your travel dates please?

USER: My travel dates are June 20th and June 22nd.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: The arrival time should be morning.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: May I know your connection limit?

USER: I need a single connection.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thanks for contacting us.